A 0.500 mol sample of an ideal diatomic gas at 400 kPa and 300K expands until the pressure decreases to 160 kPa. Find the final temperature and volume of the the pressure decreases to 160 kPa. Find the final temperature and volume of the gas, the work done by the gas, and the heat absorbed by the gas if the gas, the work done by the gas, and the heat absorbed by the gas if the expansion is (b) adiabatic. expansion is (b) adiaba

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

What is the coefficient of kinetic friction μk between the block and the tabletop?

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?