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Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen
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If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
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Billiard ball A (0.35 kg) is struck such that it moves at 10 m/s toward a second
identical ball (Ba...
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