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Determine what fraction of a sample of carbon-14 is left after 21487.5 yr. (The half-life of carbon-12 is 5730 yr.)
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An object traveling with a speed of 37.7 suddenly experiences a constant acceleration of 7.71 m/s 2 . What distance does this object travel in 6.48 seconds?
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A soccer player kicks the ball that travels a distance of 45.0 m on a level field. The ball leaves his foot at an initial speed of (v0) and an angle of 25.0° above the ground. Find the initial speed (v0) of the ball.
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