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Q. The sun shines on a thin so that a 440 nm blue light is seen reflecting off the film. What is the minimum thickness of the film?

Q. A 55.0 g Super Ball traveling at 29.0 m/s bounces off a brick wall and rebounds at 16.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.50 ms, what is the magnitude of the average acceleration of the ball during this time interval?

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