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Maksim231197 [3]

2 years ago

11

Hot coffee in a mug cools over time and the mug warms up. Which describes the energy in this system?

2 answers:

UNO [17]2 years ago

7 0

Answer:

<u>D</u>

Explanation:

where the heat transfers from coffee to mug.

Alex17521 [72]2 years ago

6 0

<span>The heat energy is being transferred between the two substances by thermal conduction. Because the hot coffee is at a different temperature to the mug, heat energy flows between them so that they reach thermal equilibrium, or the same temperature. This kind of heat transfer always happens from hotter temperatures to cooler temperatures.</span>

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Determine the thrust produced if 1.5 x 10^3 kg of gas exits the combustion chamber each second, with a speed of 4.00 x 10^3 m/s.

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Answer:

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Explanation:

Given that,

Mass of gas, $m=1.5\times 10^3\ kg$

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We know that force is equal to the rate of change of momentum. So,

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