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One way to keep the contents of a garage from becoming too cold on a night when severe subfreezing temperature is forecast is to put a tub of watering the garage. Assume the mass of the water is 165 kg and its initial temperature is 10°C.
(a) How much energy must the water transfer to its surroundings in order to freeze completely? (b) What is the lowest possible temperature of the water and its surroundings until that happens?
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A cyclotron with dee radius 45.9 cm is operated at an oscillator frequency of 12.9 MHz to accelerate protons. (a) What magnitude B of magnetic field is required to achieve resonanc
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