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Q. An ideal gas at 20 C consists of 2.2*10^22 atoms. 4.5 J of thermal energy are removed from the gas.

What is the new temperature in C?

Q. As part of a safety investigation, two 1700 cars traveling at 18 are crashed into different barriers. Find the average forces exerted on (a) the car that hits a line of water barrels and takes 1.8 to stop, and (b) the car that hits a concrete barrier and takes 0.5 to stop.

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Category:- Physics
Reference No.:- M9222800

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