A book is to be produced with pages of thickness 0.125mm.If the book is to be exactly 1cm thick what is the maximum number of pages it can contain?
Answers
Answer:
1cm=10mm
10cm/0.125mm
80pages
Related Questions
Explain why teens are especially weak at impulse control
Answers
Answer:
One explanation may be that as a group, teenagers react more impulsively to threatening situations than do children or adults, likely because their brains have to work harder to rein in their behavior, a research team reported here yesterday at the Society for Neuroscience meeting
rock that has formed from lithification of any type of sediment, including clastic or chemical sediments, or organic remains.is called?
Answers
Sedimentary rock refers to any rock that has formed as a result of the lithification of sediment, including clastic, chemical, or organic remnants.
Three groups make up the classification of sedimentary rocks. These three types of sedimentary rocks are clastic, chemical, and organic. Rocks that are clastic in natureRock fragments that were already there that have been eroded, moved, and deposited by wind, water, or ice make up clastic sedimentary rocks. Sandstone, conglomerate, and shale are a few examples of clastic rocks.Chemical sedimentary rocks As dissolved minerals precipitate out of water, chemical sedimentary rocks are created. The chemical rocks limestone and gypsum are two examples.Rocks with organic sediments Sedimentary rocks that contain organic material were previously living organisms like plants and animals. The rocks coal and chalk are examples of organic rocks.To know more about rock
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what is the weight of a spring balance when the point is 30
Answers
Answer:
A 30 lb weight is attached to the end of a spring. The spring is stretched 6 in. Find the equation of motion if the weight is released from rest a point 3 inches above equilibrium position 。x(,) =-2 sin(81) 32 x(t) =-32 cos(80 O x(r) =-icos(81)
Explanation:
2000 J of heat is added to a system and 2500 J of work is done on the system. What is the change in internal energy of the system?
Answers
Answer:
The change in internal energy of the system is 500 J.
Answer:500J
Explanation:
A 0.25 kg book falls off a 2 m shelf on to a 0.5 m chair. What was the change in GPE?
Answers
The equation of GPE is mgH, where m is mass, g is gravitational acceleration, and H is the height.
If we're solving for the change in GPE, then:
∆\(U_{g}\) = mg∆H
Input our given values for m and g:
∆\(U_{g}\) = 0.25 * 9.80 * ∆H
The book falls from 2 meters high to 0.5 meters high, so:
∆\(U_{g}\) = 0.25 * 9.80 * (2.0 - 0.5)
∆\(U_{g}\) = 0.25 * 9.80 * 1.5
∆\(U_{g}\) = 3.675 (J)
Adjust for significant figures:
∆\(U_{g}\) = 3.7 (J)
The change in gravitational potential energy was 3.7 (J)
If you have any questions on anything I did to get to the answer, just ask!
- breezyツ
nam sh et al. innovative concept for an ultra-small nuclear thermal rocket utilizing a new moderated reactor. nuclear engineering and technology. 2015;47(6):678-699
Answers
The provided information is a reference to a scientific article titled "Innovative concept for an ultra-small nuclear thermal rocket utilizing a new moderated reactor" by Nam et al. published in the journal Nuclear Engineering and Technology in 2015.
To provide a clear and concise answer, it is important to note that the given information is not a question but rather a reference to a scientific article. Therefore, there is no specific question to answer. However, based on the given reference, we can infer that the article discusses a new concept for an ultra-small nuclear thermal rocket that utilizes a moderated reactor.
Unfortunately, without access to the full article, it is not possible to provide further details about the concept or the findings of the study. To gain a more thorough understanding of the topic, I recommend accessing the full article or seeking additional resources on nuclear thermal rockets and moderated reactors.
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If an 800 kg roller coaster is at the top of its 50 m high trackit will have a potential energy pf 392,000 J and a kinetic energy of J. This means the total mechanical energy is 392, 000J the cart drops down to where its kinetic energy is now 392,000 Jhow high off the ground is the cart now?
Answers
Answer: 0 m
Explanation: PEi + KEi = PEf + KEf
Since PEi equals 392,000 and KEi equals 0 at 50m high, the total energy is 392,000.
392,000 = 392,000 + PEf
PEf = 0
Since PEf is 0J, h is also zero
A golfer pulls on the eighteenth green at a distance of 5.0m from the hole. The ball rolls straight. In the positive direction, but overshoots the hole by 1.2m. The golfer then putts back to the hole and sinks the putt for par. What is the displacement of the ball?
Answers
Answer:
Explanation:
The initial position of the ball = - 5 .0 m from the hole .
It is negative because , direction towards the hole is positive so direction from the hole will be negative .
Final position of the ball = 0 m from the hole .
Displacement of the ball = Final position - Initial position
= 0 - ( - 5 ) = 5 .0 m
Displacement = + 5 m
What is the gravitational potential energy of a 200kg car suspended 30m high?
Answers
Answer:
58,800 JExplanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
GPE = 200 × 9.8 × 30 = 58,800
We have the final answer as
58,800 JHope this helps you
Waves transport
A.Energy only
B.Mass only
C.Both mass and energy
D.Neither of the two
Answers
Answer:
A
Explanation:
In a wave phenomenon, energy can move from one location to another, yet the particles of matter in the medium return to their fixed position. A wave transports its energy without transporting matter.
Spaceship 1 and Spaceship 2 have equal masses of 150 kg. Spaceship 1 has an initial momentum magnitude of 900 kg-m/s. What is its initial speed?
A. 9 m/s
B. 6 m/s
C. 90 m/s
D. 60 m/s
Answers
Answer:
ans: 6 m/s
Explanation:
spaceship 1 has mass= 150kg
initial momentum of spaceship 1 = 900 kg•m/s
we know,
momentum = mass × velocity
so,
velocity = momentum/mass
= 900 / 150
= 6 m/s
since we know it was initial momentum so, velocity is initial speed,
School Assembly conduction script
Answers
Answer:
what is the question?
A weightlifter takes 0.5s to raise a barbell with 2 free-weights from the ground to a height of 0.9m. If each free-weight has a mass of 30kg and the barbell has a mass of 20kg, calculate how much power the weightlifter produces when lifting the barbell?
Answers
Answer:
P = 1412.82 [Watt]
Explanation:
First we must calculate the total mass that makes up the barbell and the two free weights at each end of the barbell.
\(m=30+30+20\\m= 80 [kg]\)
Weight is now defined as the product of mass by gravitational acceleration.
\(w=m*g\)
where:
m = mass = 80 [kg]
g = gravity acceleration = 9.81 [m/s²]
\(w=80*9.81\\w=784.8[N]\)
Now using the product of the weight by the distance traveled we can calculate the work.
\(W=w*d\)
where:
W = work [J]
w = weight = 784.8 [N]
d = distance = 0.9 [m]
\(W=784.8*0.9\\W=706.41[J]\)
And power is defined as the relationship of work at a certain time. The potency is expressed by means of the following formula.
\(P=W/t\\P=706.41/0.5\\P=1412.82[W]\)
How much work does the electric field do in moving a +7.2 °C charge from ground (OV) to a point where the potential is +58V higher? Pay attention to magnitude and sign.
Answers
The work done by the electric field in moving a +7.2 °C charge from ground (OV) to a point where the potential is +58V higher is +4.16 × 10⁻⁴ J.
To determine the work done, use the equation:
W = qΔV
Where
q is the charge in Coulombs (C) and
ΔV is the potential difference in Volts (V).
Since the charge is moving from a lower potential (OV) to a higher potential (+58V), the potential difference is:
ΔV = +58V - OV
= +58V.
Hence, the work done = qΔV
= (7.2 × 10⁻⁶C) × (+58V)
= +4.16 × 10⁻⁴ J
The work done by the electric field is +4.16 × 10⁻⁴ J.
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Problem II. Dimensional Analysis (1 point). A friend working a quiz problem has calculated the energy associated with moving an object against a force. He presents you with the following equation to copy onto your answer sheet before plugging and chugging the values provided in the problem. Use dimensional analysis to explain in one or two sentences how you know his answer is wrong even thoughiyou haven't even looked at the specifics of the problem. energy = distance 1× force
Answers
The equation for energy given by the friend, energy = distance × force, is incorrect.
The equation presented by the friend, energy = distance × force, is not consistent with the principles of dimensional analysis. Dimensional analysis involves examining the units of the quantities involved in an equation to ensure they are consistent on both sides of the equation. In this case, the units on the right side of the equation do not match the units of energy.
In the equation, distance is given as a unit of length, typically measured in meters (m). Force is given as a unit of mass multiplied by acceleration, typically measured in kilograms (kg) times meters per second squared (m/s²). Multiplying distance by force would yield units of meters multiplied by kilograms multiplied by meters per second squared, which is not equivalent to the units of energy.
The correct equation for energy should involve the dot product or scalar product of the distance and force vectors. The dot product takes into account both the magnitude of the force and the displacement vector of the distance. It would result in a scalar quantity, which is the correct representation of energy. Therefore, the friend's equation lacks the dot product operator, and that's why we know it is incorrect without even looking at the specifics of the problem.
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Heat capacity is an intrinsic physical property of a substance that measures the amount of heat required to change that substance's
temperature by a given amount. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by
1.00°C. Its Sl unit is //(kg-K) or J/(kg C).
Insulation is an important part of the building process; we insulate our homes, schools and businesses to conserve energy. Insulation
helps to help us cool p the summer and warm in the winter. Students were asked to design an insulating box, one that would keep
ice cubes from melting using any of the materials listed above. Which material would you pick? Explain why. Choose ALL the answers
that would apply.
A)
Cork
B)
Copper
It is a solid
D)
It has the lowest specific heat capacity of any solid.
It has the highest specific heat capacity of any solid.
Answers
Answer: It’s Cork , It is a Solid , It has the highest specific heat capacity of any solid
So. A,C,E!!!
Explanation:
Answer: I agree with the other person. The answer is Cork.
Explanation: The answer is Cork because:
It's a solidHas the highest specific heat capacity of any solidgiven that the moon takes 27.32 days to make a complete circuit around the celestial sphere (360o), what is the approximate angular size of mars?
Answers
Mars exhibits the most range in apparent size and brightness of any planet. Between 25.69" and 3.49", its angular size ranges by a factor of more than seven.
We are aware that it takes the moon 27.32 days to orbit the earth. Thus, we are aware of an orbit's period.
Ratios: 2 days equals 27.32 days, and 1 radian equals 1 second.
Radians per second are equal to (2)/(27.32 days* 24 hours/day * 60 minutes/hr * 60 seconds/minute)
Equation: = 2*pi*(1/T)
Either way, it is clear that we must translate the days into seconds and then divide the resulting number by 2pi.
Mars exhibits the most range in apparent size and brightness of any planet. Between 25.69" and 3.49", its angular size ranges by a factor of more than seven.
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When the temperature of the air in the copper ball is increased, the temperature of the air in the connecting tube may not increase by the same amount. How would this affect the pressure reading? B. Boyle's Law: 1. Use the second part of the "Gaslaw" template to plot pressure versus inverse volume on a linear scale. Find the slope of this plot from a linear regression. The ideal gas law gives PV = nRT, thus the slope of the plot gives nRT. Use the slope you have obtained to estimate the number of gas molecules contained in the syringe? (R = 8.315 J/mol*K and the Avogadro's number NA = 6,02x10" mol') 2. The number of molecules in the syringe can also be calculated directly by using the fact that at standard temperature and pressure (STP) the volume occupied by 1 mol of gas is 22.4 liters. What is the number of liters occupied by I mol of gas at room temperature under atmospheric pressure? From that estimate the number of molecules contained in the 9 cm of air. Does your result agree with that you obtained from the slope?
Answers
According to Charles's Law, which states that the volume of a gas is directly proportional to its temperature. Gaslaw template to plot pressure versus inverse volume on a linear scale allows us to determine the slope of the plot through linear regression.
A. If the temperature of the air in the copper ball increases while the temperature of the air in the connecting tube does not increase by the same amount, it can affect the pressure reading. According to Charles's Law, which states that the volume of a gas is directly proportional to its temperature (at constant pressure), the increase in temperature of the air in the copper ball would cause an increase in its volume and therefore an increase in pressure. However, since the temperature of the air in the connecting tube did not increase as much, its volume and pressure would not change as significantly.
B. 1. Using the second part of the "Gaslaw" template to plot pressure versus inverse volume on a linear scale allows us to determine the slope of the plot through linear regression. The slope represents nRT, where n is the number of moles of gas, R is the ideal gas constant (8.315 J/mol*K), and T is the temperature in Kelvin. By knowing R and the slope, we can estimate the number of gas molecules in the syringe.
2. At standard temperature and pressure (STP), 1 mole of gas occupies 22.4 liters. To estimate the number of molecules in the syringe, we need to determine the number of liters occupied by 1 mole of gas at room temperature under atmospheric pressure. By comparing this value to the 9 cm of air in the syringe, we can estimate the number of molecules. This value should ideally agree with the estimation obtained from the slope.
By comparing the number of molecules calculated from the slope and the estimation based on the volume occupied by 1 mole of gas at room temperature and atmospheric pressure, we can determine if the results agree or if there are discrepancies in the calculations.
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(FREE FALL) An object falls from an unknown height, crosses last 196m in 4s. Find the falling time and height.
Answers
Answer: An object is dropped from a height of 75.0 m above ground level.
Explanation: I hoped that helped !
Label the following variables below as: Ratio Scale, Equal-Interval, Rank-Order, or Nominal. Then label if: Discrete or Continuous. Each variable should have two labels. A. Letters of the alphabet B. Time of day C. Medals Won in the Olympics D. Percent score from a memory test E. Number of teen pregnancies in San Clemente F. G.P.A. G. Food Grades at Restaurants
Answers
Different measurement scales, such as ratio scale, equal-interval, rank-order, and nominal, are used in many disciplines, including statistics and the social sciences.
A. Letters of the alphabet:
Nominal: Without any intrinsic order or numerical value, the letters of the alphabet indicate categories or labels.
Discrete: Each letter is unique and cannot be divided into more compact parts.
B. Time of day:
Equal-Interval: A continuous scale with equal gaps between each unit (such as minutes or seconds) is what the term "time of day" represents.
Continuous: Any fractional value between units is possible when measuring time as a continuous variable (for example, 12:15, 12:30, or 12:45).
C. Medals Won in the Olympics:
Rank-Order: Olympic medals can be rated according to level of accomplishment (for example, gold, silver, and bronze).
Discrete: The total number of medals earned cannot be divided further because it is a whole number.
D. Percent score from a memory test:
Ratio Scale: A score of 50% is half of a score of 100%, for example, and percentage scores from memory tests can be compared using ratios because they have a meaningful zero point.
Continuous: Percent scores allow for fractional values and can range from 0 to 100.
E. Number of teen pregnancies in San Clemente:
Ratio Scale: A scale with a meaningful zero point and the capacity to compare ratios can be used to calculate the number of teen pregnancies.
Discrete: Pregnancies are counted as a whole; they cannot be subdivided into smaller numbers.
F. G.P.A.:
Equal-Interval: A continuous scale with equal distances between each unit is represented by the GPA (for example, 2.0, 2.5, and 3.0).
Continuous: Any value within a range, including fractional values (like 3.75), can be used for G.P.A.
G. Food Grades at Restaurants:
Rank-Order: Restaurants may rate their food using a letter grading system (A, B, C, etc.).
Discrete: There is no more subdividing the grades because they are separate groups.
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When ionic compounds are made using transition metals, ______________ are used in their naming.
Answers
Answer:
Romen numerals
Explanation:
for a soccer player running on the field, during one of the strides the braking impulse (measured as the area under the anterior-posterior ground reaction force (grf) by time curve) is the same as the propulsion impulse. however, in the vertical direction, the impulse due to the vertical grf is much higher than the impulse due to gravity. what could the soccer player be doing?
Answers
The soccer player could be jumping or engaging in a movement that generates a significant upward force during the stride in question.
It seems that during one of the strides, the soccer player could be jumping or performing an action that generates a significant upward force. Here's a step-by-step explanation:
1. The braking impulse and propulsion impulse are the same, which means the soccer player's anterior-posterior motion is in equilibrium during that stride.
2. The vertical ground reaction force (GRF) is much higher than the impulse due to gravity, suggesting an upward force is being applied.
3. This upward force could result from the soccer player jumping or performing a similar action that involves pushing off the ground with considerable force.
So, the soccer player could be jumping or engaging in a movement that generates a significant upward force during the stride in question.
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What is the SI unit of momentum?
Answers
Answer:
kgm/s(-1)
Explanation:
the units of momentum will be the product of the units of mass and velocity. Mass is measured in kg and velocity in ms-1, therefore, the SI unit of momentum will be kgm/s(-1).
I'm willing to give a lot of points if u can help me out.
A. 50 ohm
B. 33 ohm
C. 20 ohm
D. 14 ohm
Answers
Answer:
i have absolutly no idea how to do it but i looked it up and your answer should be B. i could be wrong but thats what the web told me
What famous scientist mistakenly stated that light was not a wave because he couldn't see constructive and destructive interference
Answers
Isaac Newton is the scientist who mistakenly stated that light was not a wave because he couldn't see constructive and destructive interference.
Isaac Newton stated a theory called the particle theory of light which determines the corpuscular theory. This theory states that light is comprised of small tiny particles and they always travel in straight lines and showed particle-like methods.
Newton's particle theory of light was almost accepted by every scientist in those times and he also explained about the time and optical phenomena of different patterns. But later it was confirmed by experiments made by Thomas Young and Augustin-Jean Fresnel.
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If glucose and lactose are both abundant, would it be beneficial for e. Coli cells to express the genes that metabolize lactose? why or why not?.
Answers
No, due to the fact lactose is damaged down into glucose, that's already ample. A normal E. coli cell is grown for several hours in the presence of glucose.
If each glucose and lactose are both present, lactose binds to the repressor and stops it from binding to the operator region. The block of lac gene transcription is consequently lifted, and a small amount of mRNA is produced.
Escherichia coli can use the disaccharide lactose as a source of metabolic electricity. Lactose is first transported throughout the plasma membrane by means of the membrane carrier lactose permease, then it is cleaved to free glucose and galactose by the enzymeβ-galactosidase.
Glucose requires fewer steps and less energy to interrupt than lactose. but, if lactose is the best sugar available, the E. coli will cross right ahead and use it as an electricity source. to use lactose, the microorganism should express the lac operon genes, which encode key enzymes for lactose uptake and metabolism.
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Describe how perceptual errors, cognitive biases, or emotions
have negatively affected you in a negotiation. Share at least three
examples (one perceptual error, one cognitive bias, and one
emotional)
Answers
Perceptual errors, cognitive biases, and emotions can indeed have negative effects on negotiations. Here are three examples illustrating each:
1. Perceptual error: One common perceptual error is the halo effect, where an overall impression of a person or situation influences the perception of specific attributes or qualities. In a negotiation, I may have made the mistake of perceiving my counterpart as more competent and trustworthy due to their confident demeanor and well-dressed appearance. This perceptual bias may have led me to underestimate their true intentions or overlook potential risks.
2. Cognitive bias: Confirmation bias is a cognitive bias where we seek and interpret information in a way that confirms our pre-existing beliefs or expectations. During a negotiation, I might have had a confirmation bias that my proposed solution was the best option. As a result, I might have selectively paid attention to information that supported my viewpoint and dismissed or ignored evidence that challenged it. This bias could have hindered open-mindedness and prevented me from considering alternative solutions.
3. Emotion: Emotions play a significant role in negotiations and can impact decision-making. For example, I might have experienced strong frustration during a negotiation due to the slow progress and lack of cooperation from the other party. This emotional response could have impaired my ability to think rationally and objectively, leading to impulsive or aggressive behavior. It might have also hindered effective communication and collaboration, potentially damaging the negotiation process.
In negotiations, it's important to be aware of these potential pitfalls and actively work to mitigate their effects. Developing self-awareness, practicing empathy, seeking diverse perspectives, and employing logical analysis can help counteract the negative impact of perceptual errors, cognitive biases, and emotional responses.
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An ant crawled from a hole to the food. For the first 6
minutes, it travelled at an average speed of 15 m/min. For
the next 9 minutes, it travelled at an average speed of 10
m/min. What was the average speed of the whole journey?
m/min
Answers
Answer:12
Explanation:Average speed=Total Distance divided by Total Time.
Which best describes the velocity of a rolling pen?
4 s2
4 cm/s
4 cm west
4 cm/s west
Answers
\(\huge\underline\mathcal{Answer \: - }\)
velocity is a vector quantity that tells us about the speed as well as direction of an object.
Thus , the best description of velocity will be the one which tells us the speed as well as direction of the rolling pen.
therefore ,
the last option 4 cm/s west is correct!
hope helpful ;-;
Air at 20°C blows over a 50 x 75 cm hot plate made of carbon steel (AISI 1010) with 2 cm thickness. The outer surface temperature of the plate is maintained at 300°C. The convection heat transfer coefficient is 25 W/m2⋅K. 300 W is lost from the plate surface by radiation, calculate the inside plate temperature
Answers
The inside plate temperature is approximately 235.7°C.
What is the temperature inside the carbon steel plate?The net heat transfer from the plate surface to the surrounding air can be calculated using the equation:
\(Q_n_e_t\) = \(Q_r_a_d_i_a_t_i_o_n\) - \(Q_c_o_n_v_e_c_t_i_o_n\)
where \(Q_r_a_d_i_a_t_i_o_n\) = σ(ε)(A)(T⁴) is the heat lost from the plate surface by radiation, \(Q_c_o_n_v_e_c_t_i_o_n\) = h(A)(\(T_p_l_a_t_e\) - \(T_a_i_r\)) is the heat transferred from the plate surface to the air by convection, σ is the Stefan-Boltzmann constant, ε is the emissivity of the plate, A is the surface area of the plate, T is the temperature of the plate in Kelvin, \(T_a_i_r\) is the temperature of the air, \(T_p_l_a_t_e\) is the inside plate temperature, and h is the convective heat transfer coefficient.
By rearranging the equation and solving for \(T_p_l_a_t_e\), we get:
\(T_p_l_a_t_e\) = [(\(Q_r_a_d_i_a_t_i_o_n\) - h(A)(\(T_p_l_a_t_e\) - \(T_a_i_r\)))/σ(ε)(A)\(]^(^1^/^4^)\)
Substituting the given values, we get:
\(T_p_l_a_t_e\) = [(300 - 25(0.5*0.75)(\(T_p_l_a_t_e\) - 20))/ (5.67 x \(10^-^8\) x 0.4 x 0.375)\(]^(^1^/^4^)\)
Solving for \(T_p_l_a_t_e\), we get:
\(T_p_l_a_t_e\) = 508.85 K = 235.7°C
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