A ship's boiler steam comes out at 112 C and pushes through the system, exiting into the condenser, which is kept at 20 C by circulating seawater. What is the ideal efficiency of the ship's boiler? Round to

the nearest thousandth.

O 0.643

O 0.523

O 0.703

O 0.239

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

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.

What does the law of conservation of mass state?