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Q1. A delivery truck travels 17 blocks south, 16 blocks east and 18 blocks north. What is its final displacement from the origin? Assume the blocks are equal length.

Q2. A dam is used to block the passage of a river and to generate electricity. Approximately 5.73 x 10^4 kg of water fall each second through a height of 19.6 m. I one half of the gravitational potential energy of water were converted to electrical energy, how much power would be generated?

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