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Q1. A 97 kg man drops from rest on a diving board -2.8 m above the surface of water and comes to rest 0.68 s after reaching the water. The acceleration because of gravity is 9.81 m/s^2. What force does the water exert on the man? Reply in units of N.

Q2. The sound level measured in the room by a person watching a movie in a home theatre system varies from 63 dB throughout a quiet part to 92 dB throughout a loud part. In the order of how many times louder is the latter sound?

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