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What is their total energy at the top of the hill
Course:- Physics
Reference No.:- EM13298394




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1 Equal amounts of heat are added to equal masses of copper and silver at the same initial temperature.

(a) Which metal will have the higher final temperature?

How many times greater will that temperature change be than the temperature change of the other metal?

2 A cylinder of gas is at room temperature (20°C). The air conditioner breaks down, and the temperature rises to 57°C. What is the new pressure of the gas relative to its initial pressure (p1)?

3 A sled and rider with a combined weight of 67 kg are at rest on the top of a hill 26 m high.

(a) What is their total energy at the top of the hill?

J

(b) Assuming there is no friction, what would the total energy be on sliding halfway down the hill?

J




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