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Q. Waves moving on a lake have a speed of 2.00m/s and a distance of 1.5 m between adjacent crests. a. What is the frequency of the waves? b. What is the period of the waves?

Q. A driver wearing a seatbelt decelerates at roughly the similar rate as the car itself. Since modern cars have a "crumple zone" built into the front of the car, the car would decelerate over a distance of roughly 1.20 m. Determine net force acting on a 71{rm kg} driver who is decelerated from 22.00 m/s to rest in a distance of 1.2 m.

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