The earth exerts a gravitational force on the moon. the moon exerts a gravitational force on the earth. how do the magnitudes of these two forces compare? note that the mass of the earth is 81 times the mass of the moon.

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.