In an experiment, you are studying the relationship between the force on a toy car and the change in motion, or acceleration, of the car. You place 50 N force on the car. Then using the same car you apply 100 N of force. You repeat this several times, increasing and decreasing the force on the car while keeping the mass of the car the same. whats the independent variable?

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.