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test1Makeup

# test1Makeup - it take a burst of light on the Sun to reach...

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it take a burst of light on the Sun to reach the earth, a distance of L.5 x 1011 m, if the speed Is*rdm/s?hseconds, @u* (C) looo (D) 250 (E) 4 x 1o-3 Asphereofr.adiusrexperiencesaresistiveforceofmagnitudeF=Crvwhenmovingataspeedvthrough some fluid. Given that F is meazured in newtons, the units that the constant C must have are (A) kgl s2 (B) ts,/s @ e*r, (D) m2s/kg (E) kgl (ms) gg - r^ ".a' 3, : sz ' t T A ball rolls across a horizontal floor hits a wall and then rolls backwards. Data on the ball's positionx at different times is shown in the table. Ttr-e ball hits the wall at t=0.5 s. Compute the ball's average velocity in the interval !-r- _ "- from t=0 to t=0.4 s. ,1/, o @ *u*z' (B) -5*/s (C) +10m/s (D) -10m/s (E) zero . 4.. I/ + A ball rolls across a horizontal floor, hits a wall, and It \ then rolls backwards. Data on the ball's position x at different times is shown in the'table. The ball hits the wall at t=0.6 s. Its. speed is constant before and after the collision. Compute the ball's average accelerationin the interval u-.: v" -YJ o L9 '3t (C) -rJm/s2 6 rF = rl-* : -5 '* S *1s s-- : 6.2 (D) - \,-" -5=-\o - 5?s .'swr/? t X 0 2m 0.4 s 4m 0.6 s 5m 0.8 s 4m (E) -zm/?

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