A student sees a commercial that claims a new dishwasher is energy efficient.
Compared to less efficient dishwashers, this dishwasher is most likely to -

Answer:

0.00025 kilometers

Explanation:

divide the length value by 1e+6

Answer:

250 mm = 0.00025 km.

Explanation:

250 mm equal 0.00025 km

Conversion details

To convert mm to km use the following formula:

1 mm equals 0.000001 km

So, to convert 250 mm to km, multiply 0.000001 by 250 i.e.,

250 mm = 0.000001 * 250 km = 0.00025 km

(hope this helps can i plz have brainlist :D hehe)

The energy emitted per minute by the blackbody at the given area is 170,724.8 J/min.

The energy emitted per minute at the given area is calculated as follows;

P = σAT⁴

P = (5.67 x 10⁻⁸) x (2) (398)⁴

P = 2845.41 W = 2845.41 J/s

Convert energy emitted per second to per minutes

P = 2845.41 J/s x (60 s / min) = 170,724.8 J/min

Thus, the energy emitted per minute by the blackbody at the given area is 170,724.8 J/min.

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Answer:

Is always towards the center of the Earth

Explanation:

As a satellite moves around the Earth in a circular orbit, the direction of the force of gravity is always towards the center of the Earth. At an altitude of 100 km, you would be so high that you would see black sky and stars if you looked upwards.

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question we have

\(density = \frac{4000}{2} = 2000 \\ \)

We have the final answer as

Hope this helps you

The functioning of a radio obeys the energy conservation principle, the energy is conserved throughout the process of transmitting sound waves.

Radio is a device that receives and broadcasts electromagnetic waves in the radio frequency (RF) range. The energy conservation principle states that energy can neither be created nor destroyed, but it can be converted from one form to another. This principle applies to the functioning of a radio, where the energy is conserved throughout the process.

When a radio receives a signal, it converts the electromagnetic wave energy into an electrical signal using an antenna. The electrical signal is then amplified and demodulated to extract the original audio signal. The audio signal is then amplified again and played through a speaker, where the electrical energy is converted into sound energy. The energy that was originally present in the electromagnetic wave is conserved throughout this process and is not lost.

Similarly, when a radio broadcasts a signal, the audio signal is first converted into an electrical signal, which is then amplified and used to modulate an RF carrier wave. The modulated RF wave is then transmitted through an antenna as electromagnetic waves. The electrical energy from the audio signal is conserved and transformed into electromagnetic energy in the transmitted signal.

In both cases, the energy conservation principle is applied, and the energy is conserved throughout the process. Therefore, the functioning of a radio obeys the energy conservation principle.

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Answer:

HI!

Here is ur answer

Magnetic PE depends on both distance and orientation in the magnetic field. ... The magnetic fields are aligned. This makes an attractive force between the two magnets. The farther apart they are, the higher their potential energy.

Answer:

0.00789pa

Explanation:

since pressure=force/area

=400/0.5

=800N/m2

1.013*10^5N/m2=1pascal

800N/m2=xpascal

therefore it becomes,800/1.013*10^5

=0.00789pascal

If a book is drops from a height of 1.4 m, then the speed with which book hits the ground is 5.2 m/s.

Given,

Initial velocity = 0m/s

Height = h = 1.4m

Acceleration due to gravity = 9.8 m/s2.

This can be calculated by using third equation of motion,

v2 - u2 = 2gh

where,

v is the final velocity

u is the initial velocity

h is the height

and g is the acceleration due to gravity.

By substituting all the values, we get

v2 = 2 × 1.4 × 9.8

v2 = 27.44

v = 5.2 m/s

Thus, we concluded that if a book is drops

from a height of 1.4 m, then the speed with which book hits the ground is 5.2 m/s.

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Answer:24

Explanation:u just get good sum idek

The load factor for a plant with a total of 126,527 kwh and a billed demand of 212 kw is 83%.  The billing period is 30 days long and the plant runs 24hrs/day.

A power plant's load factor is a gauge of how effectively it is being used over time. It is derived by dividing the average power demand throughout the billing period by the highest power demand. How to determine the load factor for the specified plant is as follows

total energy consumption during the billing period in kilowatt-hours (kWh):

126,527 kWh

the average power demand during the billing period in kilowatts (kW):

Average power demand = Total energy consumption / (Number of hours in the billing period)

= 126,527 kWh / (30 days x 24 hours/day)

= 176.06 kW

the maximum power demand during the billing period in kilowatts (kW):

Maximum power demand = Billed demand = 212

The load factor by dividing the average power demand by the maximum power demand:

Load factor = Average power demand / Maximum power demand

= 176.06 kW / 212 kW

= 0.83 or 83%

Therefore, the load factor for the given plant is 83%.

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Answer:

i think it was kneading because of that constant gravitational war between two interstellar celestial bodies one is also molding the other with its gravitational force so that way between the moon and the earth is a gravitational war between the two objects

Explanation: DO BE WARNED . i am not 100% sure if this was the correct term or not so please do consider this warning.

Answer:

the cart will have an acceleration of 1,25 m.s‐²

An object much more massive than Jupiter, but too small to support thermonuclear fusion is called a brown dwarf.

Brown dwarfs are often referred to as failed stars because they are too small to sustain the fusion reactions that occur in the cores of true stars.

They are typically between 13 and 80 times the mass of Jupiter and can emit some heat and light from residual energy left over from their formation, but they are not able to sustain the fusion of hydrogen into helium like a true star. Instead, they slowly cool over time, eventually becoming difficult to detect with telescopes.

Hence, An object much more massive than Jupiter, but too small to support thermonuclear fusion is called a brown dwarf.

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Answer:

a) i) In the first image we can see that almost the whole island is covered with forest. While in the second one, we can see that near the edges of the island the amount of forest cover has ben decreased. This may be because is easier to cut the trees near the shore of the island.

ii) There are different motives to cut the trees, one may be to build constructions. People need to remove the trees in an area in order to be able to build in there. Also, the trees can be used in a lot of different ways as raw materials.

b) i) Less forest cover also means that there is a smaller habitable area for the local life (animals, insects, etc...). Then the animals need to be more "cramped", and this can affect greatly the life of them.

ii) There will be less food and fewer natural resources for the locals.

Explanation:

The teacher said to the students you can go home.

Into indirect speech

The teacher told the students that they could go home.

Hope it will help :)❤

The characteristics that match the properties of a converging lens are:

a. It bends parallel rays of light so that they are focused at a point.

c. It is thicker in the middle than at the edges.

A converging lens is a type of lens that causes parallel rays of light to converge at a specific point, known as the focal point. This is the main characteristic of a converging lens and is represented by option a. The lens achieves this by refracting (bending) the light rays as they pass through it.

In terms of its shape, a converging lens is thicker in the middle and gradually tapers towards the edges. This curvature causes the lens to refract light in a way that brings the rays closer together, leading to convergence.

This characteristic is represented by option c. The thicker middle part of the lens allows for more significant refraction and bending of the light rays. Option b, which states that a converging lens is thinner at the middle than at the edges, is not correct.

This description corresponds to a diverging lens, which has the opposite effect of a converging lens, causing light rays to spread apart rather than converge. Option d, stating that a converging lens bends parallel rays of light so that they spread further apart, is also incorrect.

Again, this description matches the properties of a diverging lens, which causes light rays to diverge or spread apart.

In summary, a converging lens bends parallel rays of light to focus them at a point and has a thicker middle and thinner edges.

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The implied annualized risk-free rate of return for holding the futures contract is approximately 8.51%.

In this scenario, the futures price of the ABC index is higher than the spot price, indicating a positive cost of carry. To calculate the implied annualized risk-free rate of return, we can use the formula:

Implied Annualized Risk-free Rate = (Futures Price - Spot Price) / Spot Price * (365 / Time to Expiration)

Given the spot price of 1302, the futures price of 1335, and a 6-month expiration period, we can plug these values into the formula:

Implied Annualized Risk-free Rate = (1335 - 1302) / 1302 * (365 / 0.5)

Calculating the expression yields approximately 0.0851 or 8.51%. This implies that holding the futures contract on the ABC index would yield an annualized risk-free return of 8.51% if the current market conditions persist.

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The above given question is incomplete, below a complete question is written:

The (hypothetical) ABC index spot price is currently at 1302, and the continuously compounded risk-free rate is 6% per annum. The 6-month observed futures price on the index is 1335. What is the implied annualized risk-free rate of return for holding the futures contract?

Answer:

the first one

Explanation:

To calculate the size of the magnetic force on the wire due to the Earth's magnetic field, we can use the equation F = BILsinθ, where F is the magnetic force, B is the magnitude of the magnetic field, I is the current flowing through the wire, L is the length of the wire, and θ is the angle between the magnetic field and the direction of the current.

Plugging in the given values, we get F = (0.5 X 10^-4 T) x (0.50 A) x (0.30 m) x sin(38°) = 6.21 X 10^-6 N.

This means that the magnetic force on the wire due to the Earth's magnetic field is very small, only about 6 micro-Newtons. However, this force is still significant enough to be measurable and can have an impact on some sensitive equipment.

It's important to note the units in this calculation, as they need to agree for the equation to work. The unit of magnetic field is Tesla, the unit of current is Ampere, the unit of length is meter, and the unit of force is Newton. These units can be converted to each other using appropriate formulas and constants, such as 1T = 1N/(A x m) or 1A = 1C/s. Understanding the correct units and their conversions is essential in physics and engineering, as it ensures the accuracy and reliability of calculations.

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A battery is connected to two capacitors shown below. the capacitors have air between the plates. The total charge coming out of the power supply: 8.16 × 10⁻⁹ C.

Capacitor 1 has a plate area of 1.5 cm² and an electric field between its plates of 2000 V/m and Capacitor 2 has a plate area of 0.7 cm² and an electric field of 1500 V/m.

Therefore, the total charge coming out of the power supply can be calculated by using the following formula:

Q = C × V,

where Q is the total charge coming out of the power supply.

C is the capacitance of the capacitors.

V is the voltage of the capacitors.

The capacitance of a parallel plate capacitor can be calculated by using the following formula:

C = εA/d,

where C is the capacitance of the capacitor.

ε is the permittivity of air.

A is the area of the capacitor plates.

d is the distance between the plates of the capacitor.

let's calculate the capacitance of the capacitors:

For capacitor 1:

ε = ε₀ = 8.85 × 10⁻¹² F/m²

A = 1.5 cm² = 1.5 × 10⁻⁴ m²d = ?

E = 2000 V/mQ = CV

C = εA/dC₁ = ε₀A/d

C₁ = ε₀A/E₁

C₁ = ε₀A/(V/d)

C₁ = (ε₀A/d) × V⁻¹

C₁ = ε₀A₁/E₁

C₁ = (8.85 × 10⁻¹² F/m²)(1.5 × 10⁻⁴ m²)/(2000 V/m)

C₁ = 6.63 × 10⁻¹⁰ F

For capacitor 2:

ε = ε₀ = 8.85 × 10⁻¹² F/m²

A = 0.7 cm² = 0.7 × 10⁻⁴ m²

d = E = 1500 V/m

Q = CV

C = εA/d

C₂ = ε₀A/d

C₂ = ε₀A/E₂

C₂ = (8.85 × 10⁻¹² F/m²)(0.7 × 10⁻⁴ m²)/(1500 V/m)

C₂ = 3.95 × 10⁻¹¹ F

Total charge coming out of the power supply: Q = C₁V + C₂VQ = (6.63 × 10⁻¹⁰ F)(12 V) + (3.95 × 10⁻¹¹ F)(12 V)Q = 8.16 × 10⁻⁹ C. Therefore, the total charge coming out of the power supply is 8.16 × 10⁻⁹ C.

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The expression for |S_avg| is: |S_avg| = (P * β) / (4πε₀r^2c)

The magnitude of the average Poynting vector (|S_avg|) at a distance r from the lightbulb can be calculated using the following expression:

|S_avg| = (P * β) / (4πε₀r^2c)

where:

- |S_avg| is the magnitude of the average Poynting vector

- P is the power emitted by the lightbulb (given as P-watt)

- β is the fraction of energy emitted as electromagnetic radiation (given as 0.05 or 5%)

- π is a mathematical constant (approximately 3.14159)

- ε₀ is the permittivity of free space (a constant)

- r is the distance from the lightbulb

- ^2 denotes "squared"

- c is the speed of light (a constant)

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Answer:

Yes

Explanation:

Yes, this is a random error generating because of statistical constraint. We only have finite number of data points. As per this, if we plot our observation we will get a gaussian (inverse bell ) shaped curve with mean equal to central value.

D. Two substances must combine chemically.

One type of atom makes up an element, which is a white crystalline solid that cannot be divided into more than one component. Compounds are pure substances created by mixing two or more substances in a specific mass ratio.

Chemically pure substances that can be found in nature are called elements and compounds. An component is an object made of the same kinds of atoms as a compound, which is how they differ from one another.

It is common for the disorder to develop and the entropy of the system to increase as a result of the dispersion of molecules, atoms, and ions of one sort during the creation of a solution throughout a second substance.

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The direction of water flow through the condenser is an important design consideration that can significantly affect the efficiency, maintenance, and reliability of the refrigeration system.

The direction of the flow of water through a condenser is an important design consideration for several practical reasons:

Heat transfer efficiency: The primary function of a condenser is to transfer heat from the hot refrigerant gas to the cooler water flowing through the condenser. The direction of the water flow can significantly affect the heat transfer efficiency. By flowing the water in the opposite direction to the refrigerant gas, the temperature gradient across the condenser remains constant, resulting in a more efficient heat transfer.

Maintenance and cleaning: The direction of water flow through the condenser can also affect the ease of maintenance and cleaning. By flowing the water in the same direction as the refrigerant gas, any dirt or debris that accumulates on the condenser tubes can be easily removed by flushing the condenser with water in the opposite direction.

Corrosion prevention: In some condenser designs, the water flowing through the condenser can become corrosive due to the presence of impurities or chemicals. By flowing the water in the opposite direction to the refrigerant gas, any corrosive substances are less likely to come into contact with the condenser tubes, reducing the risk of corrosion.

Capacity control: The direction of water flow through the condenser can also affect the capacity control of the refrigeration system. By adjusting the flow rate and direction of the water, the cooling capacity of the condenser can be controlled to meet the changing demands of the refrigeration system.

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To determine the modulus of elasticity, we need to know the relationship between stress and strain for the material in question.

The equation for stress is Stress (σ) = Force (F) / Area (A)The modulus of elasticity, also known as Young's modulus, is a measure of how a material deforms under an applied force.To find the modulus of elasticity, we need both the stress and strain values. However, in your question, only the axial load (force) of 24 kN is provided, and the strain is not specified.If you have the strain value (ε) associated with the measured axial load, please provide it, and I'll be happy to calculate the modulus of elasticity for the specimen using the given data.

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Answer:

A

Explanation: