you and your friend grabbed some inner tubes to go sledding down a hill. However your friend needed a push to get him going. You gave your friend a five meters on his inner tube with a force of 400 N to start him down the snowy slope. How much work did you do

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.