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2 years ago

How does heat transfer? (Think temperature)

Physics

1 answer:

yulyashka [42]2 years ago

5 0

Answer:

The rate at which temperature changes is proportional to the rate at which heat is transferred.

Explanation:

The temperature of a sample changes more rapidly if heat is transferred at a high rate and less rapidly if heat is transferred at a low rate

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What is the potential energy of the bowling ball as it sits on top of a building ?

tangare [24]

Answer:

The potential energy of the bowling ball will be mgh

Explanation:

Let the mass of bowling ball =m

The height of building on which bowling ball sits=h

So,

The potential energy of the bowling ball =P.E.= mgh

8 0

2 years ago

Expresa en terminos de la unidad fundamental

Svet_ta [14]

Answer:

imma be honest I dint really know

5 0

2 years ago

An elevator car has a mass of 750 kg, and its three passengers have a combined mass of 135 kg. If the elevator and its passenger

joja [24]

Answer:

The change in gravitational potential energy is -1.80x10⁵ J.

Explanation:

The change in gravitational potential energy is given by:

$\Delta E_{p} = E_{p_{f}} - E_{p_{i}}$

$\Delta E_{p} = mgh_{f} - mgh_{i}$

Where:

"i" is for final and "f" for final

m: is the mass

g: is the gravity = 9.81 m/s²

h: is the height

For the car and the passengers we have:

$\Delta E_{p} = m_{T}g(h_{f} - h_{i}) = (750 kg + 135 kg)9.81 m/s^{2}(0 - 20.7 m) = -1.80 \cdot 10^{5} J$

The minus sign is because when the elevator car and the passengers are up they have a bigger gravitational potential energy than when they are in the ground.

Therefore, the change in gravitational potential energy is -1.80x10⁵ J.

I hope it helps you!

3 0

3 years ago

Arrange the balls in order from greatest amount of gravitational potential energy to least

Aloiza [94]

F e d b c a
Hope this helps !!

6 0

2 years ago

Read 2 more answers

Is more of north america north or south of the tropic of cancer

TEA [102]

Explanation:

This parallel is located in the northern hemisphere, located at a latitude of 23 ° 26′12.2 ″ (or 23,43671 °) north of the equator. Approximately in the geographic half of Mexico, crossing the states of Baja California Sur, Sinaloa, Durango, Zacatecas, San Luis, Potosí, Nuevo León, Tamaulipas. Therefore, there is more of north america, at north of the tropic of cancer.

6 0

2 years ago

How does heat transfer? (Think temperature)​

How does heat transfer? (Think temperature)