2. True or False. The center of gravity and the center of mass are always the same in an object.

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.