Bill and John go for a run. Bill has a mass of 50 kg and is able to run at a constant speed of 9 m/s when he goes for a jog. John is a bit bigger and has a mass of 65kg and can only keep a constant speed of 7 m/s Who has more momentum ? Explain .

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)