a man go to school and return to home when the distance from the home to school is 1200 and the time is 60min. what is the average sped?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

True or false graphs must include scales that increase by the same amount

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.