10 kg cart and a 5 kg cart are placed on identical surfaces. the 10 kg cart experiences a net force of 12 n to the left, while the 5 kg cart experiences a net force of 8 n to the left. compare and contrast the motion of the two carts.

The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kj/kg. the amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kj/kg. one kg of each substance is currently at its boiling point. how will the amount of thermal energy required to change each substance from a liquid to a gas differ?