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Q1. A 52g ice cube at 0°C is heated until 46g has become water at 100 °C and 6g has become steam at 100°C. How much energy was added to accomplish transformation?

Q2. A 0.350 m rod with uniform mass distribution runs along the x axis with its left end at the origin. A 1.80 m rod with uniform mass distribution runs along y axis with its top end at the origin. Find out the coordinates of the center of gravity for this system.

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