How much work is done by the clerk

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Q. A jeweler working awith a heated 47 g gold ring must lower the ring's temperature to make it safe to handle. If the ring is initially at 99 C, what mass of water at 25 C is needed to lower the rings temperature to 38 C?

Q. A delivery clerk carries a 32-N package from the ground to the fifth floor of an office building, a total height of 17 m. How much work is done by the clerk?

Reference no: EM1353216

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