What mass of water is used to cool the engine

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Q. A 250 kg cast iron car engine contains water as a coolant. suppose the engine's temp is 35 degrees Celsius when it shuts off. the air temp is 10 degrees Celsius. the heat given off by the engine and water in it as they cool to air temp is 4.4*10 to the sixth joules. what mass of water is used to cool the engine.

Q. If the ball is released from rest at a height of 0.78m above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? Assume the ball is a solid sphere of radius 2.3cm and mass 0.14kg.

Reference no: EM1354145

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