How far to the right of the support is the planks center

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Q. A 42-N crate is suspended from the left end of a plank. The plank weighs 21 N, but it is not uniform, so its center of gravity does not lie halfway between the two ends. The system is balanced by a support that is 0.30 m from the left end of the plank. How far to the right of the support is the plank's center of gravity?

Q. What will be the equilibrium temperature when a 270 g block of copper at 300°C is placed in a 150 g aluminum calorimeter cup containing 820 g of water at 12.0°C?

Reference no: EM1352705

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