The mover wants to move 3000-N piano to a height of 2m. If
he uses a ramp, he needs to pushed the piano 10-m using a
force of 800N. What is the efficiency of the ramp?

Answers

Answer 1

Efficiency of a system is defined as the ratio of the useful output power to the input power. In this case, the useful output power is the work done in lifting the piano to a height of 2 meters.

The input power is the work done in pushing the piano up the ramp over a distance of 10 meters.

The work done in lifting the piano to a height of 2 meters can be calculated as follows:

W = F x d

W = 3000 N x 2 m = 6000 J

The work done in pushing the piano up the ramp over a distance of 10 meters can be calculated as follows:

W = F x d

W = 800 N x 10 m = 8000 J

The efficiency of the ramp can be calculated as the ratio of the useful output power to the input power:

Efficiency = (Useful output power) / (Input power)

Efficiency = 6000 J / 8000 J

Efficiency = 0.75 or 75%

In conclusion, the efficiency of the ramp in this scenario is 75%. This means that for every 100 units of energy put into pushing the piano up the ramp, 75 units of energy are used to lift the piano to the desired height, and 25 units of energy are lost as heat, noise, friction, or other forms of waste energy. To improve the efficiency of the ramp, one could try reducing the friction or waste energy generated during the process.

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Related Questions

What are motion study principles? How are they classified?

Answers

The principles of motion economy can be classified into four groups: Principles related to the use of human body, Principles related to the arrangement of the work place, Principles related to the design of tools and equipment.

Frederick Taylor created a series of guidelines known as the "motion study principles" to boost productivity at work. Time study, motion study, fatigue study, etc technique conduct research are the four divisions into which they fall.

What is motion study principles?

Motion studies are the study of actions like lifting, putting things down, standing, changing direction, and other actions that are made when performing routine work.

In order to execute the task effectively in less time, unnecessary moves are attempted to be removed. The following three headings comprise the fundamentals: Making use of the human body. The layout of the workplace. Machinery and tools design.

Motion study principles will be the which will help in designing or putting films into a particular order. Also how the routine works are being made is suggested.

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If you can choose among three lanes on your side of the road,
a. pick the right lane for the smoothest driving
b. use the middle lane to drive slowly, enter, or turn off the road
c. use the left lane to go faster, pass, or turn left
h

Answers

C. use the left lane to go faster, pass, or turn left.

a c-section specimen is designed to tolerate a stress-concentration factor for 1.75. calculate the allowable normal strength in the c-section if the material used to make the section has a yield strength of 84 kpsi.

Answers

The allowable normal strength in the c-section is 48000 pounds per square inch.

The allowable stress depends on both the factor of safety imposed on the object and the yield strength or stress at which an object will be permanently damaged. To calculate the allowable normal strength we can divide the yield strength by the factor of safety.

To determine the allowable normal strength output we can use this equation below:

The allowable normal strength = The number yield strength : A stress-concentration factor

The number yield strength is 84 kpsi.

Then convert kpsi to psi : 84 kpsi = 84000 psi

A stress-concentration factor is 1.75

The formula to find allowable normal strength output is:

84000 psi : 1.75 = 48000

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How do i untange my headphone cords? If you give me a good answer i will mark u brainliest

Answers

Answer:

scissors best way 100%

Explanation:

Take one end of the headphone cord and slip it through the loop, closest to the end of the headphones, and keep doing that. It will take a while but I find that’s the best way to do it. If you have headphones that are big, then do the end of the cord on the opposite side of the headphones and it still works. The first sentence is a bit hard to understand but hopefully you get it. I mean the most recent loop that its through if that makes sense? I’m willing to answer any questions regarding my explanation.

The heat transfer surface area of a fin is equal to the sum of all surfaces of the fin exposed to the surrounding medium, including the surface area of the fin tip. Under what conditions can we neglect heat transfer from the fin tip?

Answers

Answer:

The explanation according to the given query is summarized in the explanation segment below.

Explanation:

If somehow the fin has become too lengthy, this same fin tip temperature approaches the temperature gradient and maybe we'll ignore heat transmission out from end tips.Additionally, effective heat transmission as well from the tip could be ignored unless the end tip surface is relatively tiny throughout comparison to its overall surface.

A 3 m long pole lies along the x-axis with one end at
the origin. At the other end (point A), a rope is
attached and guyed back to a point on the wall
(point B), located at (0,1.2,-2) (in m). The tension in
the rope is 2500 N. Replace the force applied by the
rope on the pole by an equivalent force couple
system located at the origin. What is the z-component of the required moment?

A 3 m long pole lies along the x-axis with one end atthe origin. At the other end (point A), a rope isattached

Answers

The z-component of the required moment is -3947.36 Nm.

The given parameters;

length of the pole, L = 3 mtension in the rope, T = 2,500 N

A little sketch of the given problem is presented below;

     B  ↑ (0, 1.2, -2)

          ↑

          ↑

(0, 0, 0) -------------------------(3, 0, 0) A

The force couple system located at the origin is calculated as;

τ = FL

τ = 2500 x 3

τ = 7500 N.m

The resultant of the coordinate vectors is calculated as;

\(r = 3i + 1.2j -2k\\\\|r| = \sqrt{3^2 + 1.2^2 + (-2)^2} \\\\|r| = 3.8\)

The z-component of the required moment is calculated as;

\(\tau = 7500 \times \frac{3i \ +\ 1.2j \ -2k\ }{3.8} \\\\\tau = 1973.68(3i \ +\ 1.2j \ -2k\ )\\\\\tau = (5921.04 i \ + \ 2,368.41j \ - \ 3947.36 k)\ Nm\)

Thus, the z-component of the required moment is -3947.36 Nm.

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QUESTION 4 Which of the following is not one of the four
criteria to create a HPWS? a. Rare b. Easy to imitate c. Organized
d. Valuable

Answers

The criterion that is not one of the four criteria to create a High-Performance Work System (HPWS) is "b. Easy to imitate." This criterion does not contribute to the creation of an effective HPWS. The other criteria, "a. Rare," "c. Organized," and "d. Valuable," are essential for establishing a successful HPWS.

When creating a High-Performance Work System, organizations focus on specific criteria to achieve desired outcomes. The first criterion is "a. Rare," which means the system should possess unique features or characteristics that are not commonly found in other organizations. This uniqueness allows the organization to gain a competitive advantage. The second criterion is "c. Organized," emphasizing the need for a well-structured and coordinated system that aligns with organizational goals and objectives. The third criterion is "d. Valuable," indicating that the system should provide significant value and contribute to the overall performance and success of the organization. However, the criterion "b. Easy to imitate" is not considered one of the criteria for creating a HPWS because the aim is to establish a system that is difficult for competitors to replicate, ensuring a sustained competitive advantage.

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8.18. Consider the thermometer-shield arrangement shown in Fig. 8.32. Assuming that the shield area is very large compared with the thermometer area and that all radiation leaving the thermometer is intercepted by the shield, calculate the true gas temperature using the following data: h, = 2.0 Btu/h . ft?: °F h, = 1.5 Btu/h - ft?. 'F E = 0.8 . Es = 0.2 T= 600°F T; = 100°F (It is assumed from the statement of the problem that Fis = 1.0, Fse = 1.0, and Fte = 0.) What temperature would the thermometer indicate if the shield were removed? Calculate the error reduction owing to the use of the radiation shield.

Answers

The true gas temperature is 380.7°F

The temperature indicated by the thermometer if the shield were removed is 312.5°F

The error reduction owing to the use of the radiation shield is 81.2%.

The true gas temperature using the given data is to be determined.

As per the given data:

h_1 = 2.0 Btu/h . ft^2 .

°Fh_2 = 1.5 Btu/h . ft^2 .

°FE_s = 0.8

E = 0.2

T_1 = 600°F

T_2 = 100°F

The heat loss per unit area through thermometer is given by:

q_T/A = h_1 (T_1 - T_T) -------------------(1), where, T_T = Thermometer temperature

Heat loss per unit area through shield is given by:

q_S/A = h_2 (T_S - T_1) --------------------(2), where, T_S = Shield temperature

Considering steady state and considering that all the radiation leaving the thermometer is intercepted by the shield:

q_T/A = E_s . (q_T + q_S)/A --------------------(3)

Therefore, from equations (1), (2) and (3):

T_T = (h_1.T_1 + h_2.T_S)/(h_1 + E_s.h_2)

T_S = T_1 - q_T / (h_2 + E_s.h_1)

From the above equations, T_T = 380.7°F (Approx.)

Using Stefan Boltzman's Law:

q_T = F_te.sigma.(T_T)^4

q_S = F_se.sigma.(T_S)^4

q_T without shield = sigma.(T_T)^4

q_T without shield = 1264.4 (Approx.)

q_S without shield = sigma.(T_1)^4

q_S without shield = 104.1 (Approx.)

Therefore, the temperature indicated by the thermometer if the shield were removed = (q_T without shield / sigma)^(1/4)

Temperature indicated by the thermometer if the shield were removed = 312.5°F

Error reduction = (q_T - q_T without shield) / q_T

Error reduction = 81.2% (Approx.)

Therefore, the true gas temperature is 380.7°F, the temperature indicated by the thermometer if the shield were removed is 312.5°F, and the error reduction owing to the use of the radiation shield is 81.2%.

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.Write a program that uses a void function void miles_to_km() to generate a kilometer
conversion table for all even kilometers from 2 miles to 62 miles. Use two decimal
places for kilometers.

Answers

Explanation:

rational

Step-by-step explanation:

The discriminant (d) of a quadratic equation ax^2 + bx + c = 0ax

2

+bx+c=0 is:

\boxed{\mathrm{d =} \ b^2 - 4ac}

d= b

2

−4ac

.

If:

• d > 0, then there are two real solutions

• d = 0, then there is a repeated real solution

• d < 0, then there is no real solution.

In this question, we are given the quadratic equation 3x^2 + 4x - 2 = 03x

2

+4x−2=0 . Therefore, the discriminant of the equation is:

b² - 4ac = (4)² - 4(3)(-2)

= 16 - (-24)rational

Step-by-step explanation:

The discriminant (d) of a quadratic equation ax^2 + bx + c = 0ax

2

+bx+c=0 is:

\boxed{\mathrm{d =} \ b^2 - 4ac}

d= b

2

−4ac

.

If:

• d > 0, then there are two real solutions

• d = 0, then there is a repeated real solution

• d < 0, then there is no real solution.

In this question, we are given the quadratic equation 3x^2 + 4x - 2 = 03x

2

+4x−2=0 . Therefore, the discriminant of the equation is:

b² - 4ac = (4)² - 4(3)(-2)

= 16 - (-24)

= 40

Since the discriminant, 40, is greater than zero, the quadratic equation has 2 rational solutions.

= 40

Since the discriminant, 40, is greater than zero, the quadratic equation has 2 rational solutions.

Why are most products the result of an innovation instead of an invention?

Answers

Answer:

they were updated rather than being created

Answer:

Invention is about creating something new, while innovation introduces the concept of “use” of an idea or method.

Describe some typical pairs of entities that you think might be common in business, and describe their relationships, whether many-to-many, one-to-many, many-to-one, or one-to-one. Explain why you think that a particular relationship applies to that pair of entities.

Answers

Answer:

Sole Proprietorship, General Partnership , Limited Partnership, corporation

Explanation:

Business in something that an individual or a group of people do for a living and produce products and services that benefits the society and the people. There are several entities that can be common in business. Some common form of entities are :

Sole Proprietorship : One to one

-- here there is only one owner in the business and he maintains and manages the entire business functions under his control.

Limited Partnership : many to one

-- here two or more than two partners establish business and runs it but only one or more is liable to the amount of the investments.

General Partnership : many to many

-- It is a business partnership where all the partners shares the profits, the assets, legal liabilities and financial liabilities, etc.

Corporation : many to one

It is a business entity where a group of individual or a group of companies run a single business which is generally authorized by the state.

Some of the typical types of the entities that one may think to be common in term of the business entities are about the relationships that are held within many to many and one to many.

The one to one relation is Sole Proprietorship, General Partnership, Limited Partnership, corporation.

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Calculate the maximum electric field in units of (V/cm) in an uncompensated p-n junction diode under bias assuming the parameters given below.
• Semiconductor: Silicon
• Diode type: Double-sided abrupt junction
NA =28 x 1016 (cm3)
ND=36×1016 (cm3)
.
• Bias: V=-1.5 (Volts)
Temperature: 300K
.

Answers

As something of a result, the highest electric field in an unpaid labor p-n junction diode is around 8.93 x 104 V/cm. To calculate the maximum electric field (Emax) in an uncompensated p-n junction diode, we can use the following formula:

Emax = V / W

Where V is the applied bias voltage and W is the depletion width of the diode.

The depletion width can be calculated using the following formula for a double-sided abrupt junction:

W = [(2εε0 / q) * (NA*ND / (NA+ND)) * (Vbi + V)]^0.5

Where ε is the permittivity of silicon, ε0 is the vacuum permittivity, q is the charge of an electron, NA is the acceptor doping concentration, ND is the donor doping concentration, Vbi is the built-in potential, and V is the applied bias voltage.

We can first calculate the built-in potential using the following formula:

Vbi = (kT / q) * ln(NA*ND / ni^2)

Where k is the Boltzmann constant, T is the temperature in Kelvin, and ni is the intrinsic carrier concentration of silicon at 300K, which is approximately 1.5 x 10^10 (cm^-3).

Plugging in the given values, we get:

Vbi = (8.617 x 10^-5 eV/K * 300K / 1.602 x 10^-19 C) * ln(28 x 10^16 cm^-3 * 36 x 10^16 cm^-3 / (1.5 x 10^10 cm^-3)^2)

≈ 0.787 V

Next, we can calculate the depletion width using the formula above:

W = [(2εε0 / q) * (NA*ND / (NA+ND)) * (Vbi + V)]^0.5

= [(2 * 11.7 * 8.854 x 10^-14 F/cm / 1.602 x 10^-19 C) * (28 x 10^16 cm^-3 * 36 x 10^16 cm^-3 / (28 x 10^16 cm^-3 + 36 x 10^16 cm^-3)) * (0.787 V - 1.5 V)]^0.5

≈ 0.168 µm

Finally, we can calculate the maximum electric field using the formula at the beginning:

Emax = V / W

= -1.5 V / (0.168 µm * 10^-4 cm/µm)

≈ -8.93 x 10^4 V/cm

Therefore, the maximum electric field in AP the uncompensated p-n junction diode is approximately 8.93 x 10^4 V/cm.

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There is a proposal to replace the entire system with a single generator that has a reliability as good or better than the current one-year reliability. 6. What would be the required MTBF (in hours) for the new generator (assume exponential and 8760 hours/year)? 7. How many total test hours should be allocated for the new generator (assuming 1 failure is allowed) at 50% confidence? 8. Suppose the budget only supported 30,000 total test hours for the new generator. What is the demonstrated MTBF (ΘL) at 50% confidence if no failures were observed? Was the requirement demonstrated? Consider the original system diagram with Generator B as continuously operating (not in standby mode) with no load sharing. 9. What is the static relaibility of the system for this situation? 10. Convert the block diagram to a Fault Tree. Calculate the probability of the top-level event (system failure)?

Answers

The required MTBF (in hours) for the new generator (assuming exponential and 8760 hours/year) will be 8760 hours.

7. Total test hours should be allocated for the new generator (assuming 1 failure is allowed) at 50% confidence should be 688 hours.

8. The demonstrated MTBF (ΘL) at 50% confidence if no failures were observed will be 43,800 hours. Yes, the requirement was demonstrated.

9. The static reliability of the system for this situation can be determined by calculating the probability of no failure. The probability of no failure will be 0.85 * 0.95 * 0.98 * 0.99 = 0.764. Therefore, the static reliability of the system for this situation will be 0.764.10.

Probability of the top-level event (system failure) can be calculated by adding the probabilities of all the paths leading to the top-level event. The probability of the top-level event (system failure) will be:

P(system failure) = P(Gen A failure) + P(Gen B failure) + P(Gen C failure) + P(Tie Bus failure) * P(No load shedding) + P(Tie Bus failure) * P(Load shedding)

P(Gen A failure) = 1 - e^(-8760/30000) = 0.215

P(Gen B failure) = 0.85 * (1 - e^(-8760/18000)) = 0.37

P(Gen C failure) = 0.95 * (1 - e^(-8760/30000)) = 0.276

P(Tie Bus failure) = 0.98

P(No load shedding) = 0.99

P(Load shedding) = 0.01

P(system failure) = 0.215 + 0.37 + 0.276 + 0.98 * 0.99 + 0.98 * 0.01 * (1 - P(Gen A failure)) * (1 - P(Gen B failure)) * (1 - P(Gen C failure)) * P(Tie Bus failure)P(system failure) = 0.215 + 0.37 + 0.276 + 0.98 * 0.99 + 0.98 * 0.01 * (1 - 0.215) * (1 - 0.37) * (1 - 0.276) * 0.98P(system failure) = 0.9644

Therefore, the probability of the top-level event (system failure) will be 0.9644.

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Anything you want to do in Hootsuite can be found in the ________, with the main workspace in the _________?
Settings; Streams
Sidebar; center
Header; Sidebar
Nav-panel; dashboard

Answers

Answer:

Anything you want to do in Hootsuite can be found in the ___ Sidebar_____, with the main workspace in the ___center______

Sidebar; center

Explanation:

The main workspace of the Hootsuite is located in the center.  The sidebar is where the core access to the Hootsuite functionality, like Streams, Inbox, Planner, Analytics, Publisher, and the App Directory, is obtained.  Hootsuite is a media management platform for curating content, scheduling posts, managing team members, and measuring performances.

1. Asbestos can be dangerous but is not a known carcinogen.
A) O True
B) O False

Answers

Asbestos may cause cancer by inhalation. Moreover, asbestos is also known to cause different respiratory diseases (especially asbestosis) by affecting the mucosa of the bronchi.

The statement "Asbestos can be dangerous but is not a known carcinogen" is FALSE.

Asbestos is a group of materials that were widely used in building constructions until 1990.

Asbestos is a toxic substance that may cause mesothelioma and lung cancer.

Mesothelioma is a type of cancer that develops on the outer surface that covers different internal organs.

Moreover, asbestosis is a chronic disease in the lungs caused by long-term exposure to asbestos.

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Answer:

False

Explanation:

Problem 2 Six years ago, an 80-kW diesel-electric set cost $145,000. The cost index for this class of equipment six years ago was 187 and is now 194. The plant engineering staff was considering a 120−kW unit of the same general design to power a small isolated plant that would have cost $200,145. Based on the information above the plant engineering staff is considering a 100−kW unit of the same general design to power a small isolated plant. Assume we want to add a pre-compressor, which (when isolated and estimated separately) currently costs $10,000. Determine the total cost of the 100−kW unit.

Answers

The total cost of the 100−kW unit= Cost of 100−kW unit + Additional cost of the pre-compressor= $166,786 + $10,000= $176,786.

Given: Cost of 80-kW diesel-electric set six years ago = $145,000Cost index for this class of equipment six years ago = 187Cost index for this class of equipment now = 194Cost of 120−kW unit of the same general design to power a small isolated plant = $200,145

The plant engineering staff is considering a 100−kW unit of the same general design to power a small isolated plant.Cost of adding pre-compressor = $10,000

To determine the total cost of the 100−kW unit, we need to find the cost of the 80-kW diesel-electric set at present, the cost of the 100−kW unit, and the additional cost of the pre-compressor.Cost of 80-kW diesel-electric set at present= Cost of 80-kW diesel-electric set six years ago × (Cost index for this class of equipment now / Cost index for this class of equipment six years ago)= $145,000 × (194 / 187)= $150,816.34Cost per kW of the 80-kW diesel-electric set= Cost of 80-kW diesel-electric set at present / 80= $150,816.34 / 80= $1,885.20

Cost per kW of the 120−kW unit= Cost of 120−kW unit / 120= $200,145 / 120= $1,667.87The cost of the 100−kW unit of the same general design= 100 × Cost per kW of the 120−kW unit= 100 × $1,667.87= $166,786

Additional cost of the pre-compressor= $10,000. Hence, the total cost of the 100−kW unit is $176,786.

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help protect the lower legs and feet from heat hazards like molten metal and welding sparks

Answers

Answer:

i think its called leggings thats wut my shop teacher told me

Explanation:

Leggings protect the lower legs and feet from heat hazards such as molten metal or welding sparks.

what are small, flat-bottom boats, such as duck hunting boats, prone to do?

Answers

Small, flat-bottom boats, such as duck hunting boats, are prone to capsizing or tipping over. This is because they have a shallow draft and a flat bottom, which makes them unstable in rough or choppy water. In addition, they are often small and lightweight, which can make them more susceptible to wind and waves.

These boats are also prone to taking on water due to their low freeboard (the distance from the waterline to the deck), which can make them vulnerable to flooding in heavy rain or rough seas. It is important to properly distribute weight and to avoid overloading these boats, as excess weight can also increase the risk of capsizing.

For these reasons, it is important to exercise caution when operating small, flat-bottom boats and to always wear a personal flotation device (PFD) or life jacket while on the water. Additionally, it is recommended to take a boater safety course to learn proper boating techniques and safety procedures.

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Final answer:

Small, flat-bottom boats like duck hunting boats are prone to tipping over or capsizing due to their high center of gravity and lack of stability. The concept of buoyancy and stability plays a key role in understanding why these boats are prone to tipping over.

Explanation:

Small, flat-bottom boats, such as duck hunting boats, are prone to tipping over or capsizing if they encounter rough water or strong waves. This is due to their center of gravity being high and their lack of stability.



To understand why these boats are prone to tipping over, it is important to consider the concept of buoyancy and stability. When a boat is floating on the water, it experiences an upward force called buoyancy that is equal to the weight of the water displaced by the boat. This buoyant force helps to keep the boat afloat.



However, if the boat is not designed with a low center of gravity or with a wider base, it can become unstable and prone to tipping over. This is especially true when the boat encounters turbulent water or when there is a shift in weight distribution, such as when a person stands up or moves around in the boat.

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An elevation is.... * 10 points a. A detailed description of requirements, composition and materials for a proposed building. b. A view of a building seen from one side, a flat representation of one façade. This is the most common view used to describe the external appearance of a building. c. The development of the last remaining lots in an existing developed area, the new development within an area already served by existing infrastructure and services, or the reuse of already developed, but vacant properties. d. The practice of creating structures and using processes that are environmentally responsible and resource-efficient throughout a building's life-cycle from siting to design, construction, operation, maintenance, renovation and deconstruction.

Answers

Answer:

b. A view of a building seen from one side, a flat representation of one façade. This is the most common view used to describe the external appearance of a building.

Explanation:

An elevation is a three-dimensional, orthographic, architectural projection that reveals just a side of the building. It is represented with diagrams and shadows are used to create the effect of a three-dimensional image.

It reveals the position of the building from ground-depth and only the outer parts of the structure are illustrated. Elevations, building plans, and section drawings are always drawn together by the architects.

A container can be made from steel [β = 36 × 10-6 (C°)-1] or lead [β = 87 × 10-6 (C°)-1]. A liquid is poured into the container, filling it to the brim. The liquid is either water [β = 207 × 10-6 (C°)-1] or ethyl alcohol [β = 1120 × 10-6 (C°)-1]. When the full container is heated, some liquid spills out. To keep the overflow to a minimum, from what should the container be made and what should the liquid be

Answers

Answer:

The container should be made of lead and the liquid should be water.

Explanation:

Since the volume of the container of liquid after expansion is V = V₀(1 + βΔθ) where V = initial volume, β = coefficient of volume expansion, Δθ = temperature change.

So, the volume change V₂ - V₁ where V₁ = volume of liquid and V₂ = volume of container

For steel, V₂ = V₀(1 + β₂Δθ) and V₁ = V₀(1 + β₁Δθ)

So, ΔV = V₀(1 + β₂Δθ) - V₀(1 + β₁Δθ) = V₀[1 + β₂Δθ - 1 - β₁Δθ] = V₀[β₂Δθ - β₁Δθ]

Since we want a minimum value for ΔV and V₀ and Δθ are the same, we need ΔV/V₀Δθ = β₂ - β₁ to be a minimum

where β₂ = coefficient of volume expansion of liquid and β₁ = coefficient of volume expansion of container.

So, trying each combination, with  β₂ = 207 × 10⁻⁶ (C°)⁻¹] and β₁ = 36 × 10⁻⁶ (C°)⁻¹

β₂ - β₁ = 207 × 10⁻⁶ (C°)⁻¹ - 36 × 10⁻⁶ (C°)⁻¹ = 171 × 10⁻⁶ (C°)⁻¹

With  β₂ = 207  × 10⁻⁶ (C°)⁻¹] and β₁ = 87  × 10⁻⁶ (C°)⁻¹

β₂ - β₁ = 207 × 10⁻⁶ (C°)⁻¹ - 87 × 10⁻⁶ (C°)⁻¹ = 120 × 10⁻⁶ (C°)⁻¹

With  β₂ = 1120 × 10⁻⁶ (C°)⁻¹] and β₁ = 36  × 10⁻⁶ (C°)⁻¹

β₂ - β₁ = 1120 × 10⁻⁶ (C°)⁻¹ - 36 × 10⁻⁶ (C°)⁻¹ = 1084 × 10⁻⁶ (C°)⁻¹

With  β₂ = 1120 × 10⁻⁶ (C°)⁻¹] and β₁ = 87 ×  10⁻⁶ (C°)⁻¹

β₂ - β₁ = 207 × 10⁻⁶ (C°)⁻¹ - 87 × 10⁻⁶ (C°)⁻¹ = 1033 × 10⁻⁶ (C°)⁻¹

The combination that gives the lowest value for β₂ - β₁ is β₂ = 207 × 10⁻⁶ (C°)⁻¹] and β₁ = 87 × 10⁻⁶ (C°)⁻¹

Since  β₁ = 87 × 10⁻⁶ (C°)⁻¹ = coefficient of expansion for lead β₂ = 207 × 10⁻⁶ (C°)⁻¹]  = coefficient of expansion for water, the container should be made of lead and the liquid should be water.

*Avoid waiting in long drive-thru lines, for example, at fast-food restaurants or banks. Park your car and go in. *When possible, use public transportation, walk, or ride a bike. *Get regular engine tune ups and car maintenance checks. *Join a carpool or vanpool to get to work or school. *Keep tires properly inflated and aligned. Conservation. The choices in the list above help to regulate important biogeochemical cycles as well as conserve important natural resources. Making these good choices impacts several cycles on Earth.

Required:
Which set of answers - biogeochemical cycle; natural resource; consequence - is not affected by the list above?

Answers

Answer:

When possible, use public transportation, walk, or ride a bike

Explanation:

Answer:

water; water; Oxygen enters the waterways and causes an imbalance of plant life to animal life.

Explanation:

*Avoid waiting in long drive-thru lines, for example, at fast-food restaurants or banks. Park your car

Explain what the ancient Romans did to solve the problem in the following scenario.

Situation: In ancient Italy, farmers were experiencing a drought. Rather than move to where the water was, Roman inventors decided to bring the water to the farmers.

Answers

Answer:

They moved fresh water around their vast empire with aqueducts and canals.

Explanation:

The product solution for a drug made in a bioreactor needs to be filtered and concentrated before it can

be bottled for sale. The initial solution is 40% large particles, 20% small particles, 35% water, and 5%

drug. The solution is centrifuged to remove the large particles, then sent to a filter to remove small

particles, and finally sent to an evaporator to remove excess water. The final solution to be bottled is

75% water and 25% drug.


a) Draw a diagram of the process. Use the following for abbreviation (D = drug, L= large particles, S

= small particles, W = water).

b) Determine the flow rate of the solution to be bottled if the flow rate into the bioreactor is 250

kg/h. Show the balance equation you used and the solution. Hint: you only need 1 equation to

solve for this

Answers

a) The diagram of the process is as follows: | 40% L    |       | 20% S    |       | 35% W    |       |  5% D    |b) The flow rate of the solution to be bottled is 50 kg/h.

a) The diagram of the process is as follows:

```

+----------+       +----------+       +----------+       +----------+

|          |       |          |       |          |       |          |

| 40% L    |       | 20% S    |       | 35% W    |       |  5% D    |

|          |       |          |       |          |       |          |

+----------+       +----------+       +----------+       +----------+

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

+------------>  Centrifuge   <------------+      |             |

|                 |             |          |      |             |

|                 |             |          |      |             |

|                 |             |          |      |             |

|                 |             |          |      |             |

+------------>    Filter     <------------+      |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

|                 |             |                 |             |

+------------>  Evaporator  <------------+       |             |

|                 |             |          |      |             |

|                 |             |          |      |             |

|                 |             |          |      |             |

|                 |             |          |      |             |

+------------>   Bottling    <------------+      |             |

                      |                          |             |

                      |                          |             |

                      |                          |             |

                      |                          |             |

                      +------------> 75% W <-----+             |

                      |                          |             |

                      |                          |             |

                      |                          |             |

                      |                          |             |

                      +------------> 25% D <-----+             |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           |                    |

                                           v                    v

```

b) The flow rate of the solution to be bottled can be determined using a balance equation. The balance equation is:

```

250 kg/h * 0.05 = X * 0.25

```

Where X is the flow rate of the solution to be bottled. Solving for X gives:

```

X = (250 kg/h * 0.05) / 0.25

X = 50 kg/h

```

Therefore, the flow rate of the solution to be bottled is 50 kg/h.

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During a construction project, engineers used explosives to excavate 140 feet of tunnel into a mountain. But because of time constraints and environmental concerns, they brought in a tunnel boring machine (tbm) to excavate the rest of the tunnel. The data table lists some observations an engineer made about the length of the tunnel after the tbm was introduced. How much of the tunnel was completed 26 days after the tbm was introduced?.

Answers

The engineer observed that the tunnel was 460 feet long 26 days after the tbm was introduced. Therefore, the tunnel was completed 460 feet - 140 feet = 320 feet after the tbm was introduced.

What is tunnel?
A tunnel is an underground or underwater passageway, typically constructed for transportation purposes. Tunnels are typically used to bypass obstacles such as mountains, rivers, or bodies of water, or to provide a secure route for transportation of goods and people. Tunnels may also be used for mining, research, or military purposes. Tunnels can be constructed using a variety of materials, including steel, reinforced concrete, rock, earth and soil. The length of a tunnel varies from a few metres to several kilometres. When constructing a tunnel, safety is of paramount importance. Special engineering techniques are used to ensure the stability of the tunnel and its construction is closely monitored and regulated. Tunnels are designed to be resistant to weather, vibration, fire, and other environmental factors.

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Implement the following Matlab code:
x=zeros(10,128);
t1=[0:1/128:1-1/128];
z=cos(2*pi*2*t1);
x(1,:)=z;
x=reshape(x,1,1280);
figure(1);
plot(x)
Examine Figure 1 – what does it “look like”? Zoom in. Take the FFT of x and explain what you see.
Manipulate the FFT and perform the IFFT to create a signal which is a continuous (i.e. no interpolating zeroes) sinusoid in the “time” domain. Explain the amplitude of the sinusoid.

Answers

28384 *x soít cos estematema

The amplitude of the sinusoid is 28384 *x soít cos.

What is amplitude?

Amplitude is defined as the greatest deviation from equilibrium of a point on a vibrating body or wave in terms of displacement or distance traveled. In most cases, amplitude is calculated by looking at a wave graph and determining the height of the wave from rest. The strength or intensity of the wave is gauged by its amplitude.

Sinusoid is defined as a signal with sine wave characteristics. In the liver, spleen, and bone marrow, sinusoids and irregular tubules transport blood in place of venules and capillaries. The sine or cosine functions from trigonometry form the foundation of sinusoidal signals, which are periodic functions.

Thus the amplitude of the sinusoid is 28384 *x soít cos.

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Which of the following represents an example to calculate the sum of numbers (that is, an accumulator), given that the number is stored in the variable number and the total is stored in the variable total? a) total + number = total. b)total += number c) number += number d) total = number

Answers

The example that represents calculating the sum of numbers as an accumulator and stores the result in the variable total is given by: Option b) total += number

An accumulator is a variable that is used in programming to store and accumulate results of an operation. It is usually used in loops to add or multiply the value of a variable on each iteration or loop pass. To add numbers using an accumulator in Python, you can use a variable that will store the sum of the numbers. Let's say the numbers are stored in a list `numbers`. Here's how you can use an accumulator to add the numbers in the list and store the result in a variable `total`:total = 0 # initialize the accumulatorfor num in numbers:  # iterate over the numbers and add them to the accumulator   total += num # add the current number to the accumulatorend # end of loopThe value of the variable `total` will be the sum of all the numbers in the list.

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In vertical analysis, each item is expressed as a percentage of:Multiple ChoiceTotal assets on the balance sheet.Total cash on the balance sheet.Total current assets on the balance sheet.None of these answers are correct.

Answers

: None of these answers are correct.

In vertical analysis, each item is expressed as a percentage of a base amount within the same financial statement. The base amount varies depending on the purpose of the analysis. Common base amounts used in vertical analysis include total assets, total liabilities, net sales, or total revenue.Vertical analysis helps to assess the relative proportion of each item in relation to the base amount and provides insights into the composition and structure of the financial statement. By expressing each item as a percentage, it allows for meaningful comparisons and trend analysis over time.

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technician a says the emission vacuum schematic for the vehicle can only be found in the factory service manual. technician b says an emissions vacuum schematic is given on a decal under the hood. who is correct?

Answers

Technician B is correct. An emissions vacuum schematic is given on a decal under the hood. When dealing with vehicle repairs, it is crucial to understand the vacuum system.

What's vacuum system

The vacuum system on a car is critical for many reasons, such as powering the brakes and some emissions control systems. With all of this in mind, the car's vacuum system must be maintained and repaired to ensure that everything runs correctly. When performing repairs on the vacuum system, it is important to have an emissions vacuum schematic on hand.

A vacuum diagram is a simplified schematic representation of the vacuum system. An emissions vacuum schematic is given on a decal under the hood of a car that shows the vehicle's emission and vacuum routing. It may also show the engine's firing order, spark plug gap, and other information. On the other hand, the factory service manual may contain more detailed information about the vehicle's vacuum system.

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By now, you most likely already noticed there are many similarities between the technological design process and the scientific method. Using your own words, explain 3 ways in which these processes are similar. (This will be graded).

Answers

Answer:

The key to bieng a good engineer

1. Define Your Goals

2. Commit Yourself To Continuous Professional Development

3. Work On Improving Soft Skills

4. Understand Business

5. Embrace Change

6. Work Hard

7. Be Optimistic

8. Identify Role Models And Mentors

9. Stay Flexible

10. Focus On The Long-Term

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create an autocorrect entry to change ligament to ligament when typed

Answers

To create an autocorrect entry for the word ligament when typed the setting needs to be changed in the proofing segment.

The steps to create autocorrect for the same is as follows:
1. Open the document or program where you want to add the autocorrect entry
2. Go to the "File" or "Options" menu, depending on the program
3. Look for the "Proofing" or "AutoCorrect" option and click on it
4. In the "AutoCorrect" tab, type "ligament" in the "Replace" box and "ligament" in the "With" box
5. Click on the "Add" button, then click "OK" to save the changes
From now on, whenever you type "ligament", it will automatically change to "ligament". This should help you avoid any spelling errors or typos in your documents related to the term "ligament".

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