NASA sends Lauren to an unknown planet (this is WY in the future). When she drops (think about the initial velocity if you drop something) a hammer on this planet, she discovers it takes 0.74 s to fall 3 m to the ground. What is the acceleration due to gravity on this unknown planet?

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.