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Q. A 0.11 kg cube of ice at 0.0C is added to 0.450 kg of soup at 80 C. Assuming that the soup has the same specific capacity as water,find the final temperature of the soup after the ice has melted.

Q. A 700 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3 m long. what is the force in each rope when the washer stands 1 m from one end?

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