(a) what is the magnitude of the momentum of a 0.0053-kg marble whose speed is 0.65 m>s? (b) what is the speed of a 0.132-kg baseball whose momentum has a magnitude of 3.28 kg

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?