If a 10 kg weight is moved from a shelf 1m off the ground to a 3m off the ground, how much potential energy did it gain? 98 J
196 J
294 J
392 J

Which levels of government establish and implement educational requirements for minors

Why do astronauts in the space shuttle weigh less?

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.