To get better acceleration, you want to reduce the inertia of your bicycle. You have your choice of spending $45 on only one of three light-alloy items, each reducing the inertia of your bicycle by the same amount:

A. a new seat post,
B. a new set of pedals
C. a new set of wheel rims.

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.