Find the work completed by the gas during this process

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Q. A penny of mass 3.1g rests on a small 20g block supported by a spinning disk. The coefficients of friction between the block and disk are 0.75 (static) and 0.64 (kinetic) while those for the penny and the block are 0.520 (static) and 0.450 (kinetic). What is the maximum rate of rotation that disk can have, without the block or penny sliding on the disk.

Q. When 1250J of heat is added to one mole of an ideal monatomic gas, its temperature increases from 272K to 27 K. Find the work completed by the gas during this process.

Reference no: EM1372589

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