The air in a kitchen has a mass of 60.0kg and a specific heat of 1505J/(kg°C).

Physics

2 answers:

BARSIC [14]3 years ago

8 0

Your answer is 632,100J which is Choice D

AveGali [126]3 years ago

5 0

Answer: The answer is D.

So you have 60kg of air, and the specific heat per kilogram is 1505j/(kg°C), this means you need 1505j to increase 1°C to the temperature of a mass of 1kg of air.

So, if the change in temperature is from 24°C to 31°C, you are increasing 7°C to 60kg of air.

then, for each degree you need 60*1505 j= 90300j

and for 7°c you need 7*90300j = 632100j, wich is answer D.

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yaroslaw [1]

The change in the kinetic energy refers to the work done in displacing a body, thus, the change in the kinetic energy of an object refers to the work done on the object.
The correct formula to use is:
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nikdorinn [45]

Answer:

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Explanation:

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