Which of the situations described below is explained by the electrical force A) A compass needle swings around so that it points due north
B) A rock sits at rest on the side of a hill, despite the gravitational force.
C) A child's hair stands on end after she removes a stocking cap on a cold day.
D) A race car traveling around a curve is pressed down into the banked track.​

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.