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A tennis player tosses a tennis ball straight up and then catches it after 1.65 s at the same height as the point of release.
(a) What is the acceleration of the ball while it is in flight?
magnitude (m/s^2)= ?
direction =is it upward, downward or the magnitude is zero?
(b) What is the velocity of the ball when it reaches its maximum height?
direction = is it upward, downward or is the magnitude zero
(c) Find the initial velocity of the ball
m/s upward = ?.
(d) Find the maximum height it reaches
m= ?.
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If a material increases its length from 130 m to 132.60 m when its temperature is rasied 155 degrees C, what is its coefficient of linear expansion
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