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A cylindrical copper rod 37 cm long and 7.5 cm in diameter is placed upright on a hot plate held at a constant temperature of 120 °C, as indicated in Figure 17-41. A small depression on top of the rod holds a 25-g ice cube at an initial temperature of 0.0 °C. How much time does it take for the ice cube to melt? Assume there is no heat loss through the vertical surface of the rod, and that the thermal
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