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A 0.30 kg ball is tied to a 38 cm long string and released from a horizontal position. It swings down, colliding with a wad of putty of mass 0.50 kg. After the collision, the block and putty stick together and swing up. The ball and putty have sizes negligible to the length of the string.
(a) What is the velocity of the ball just before the collision?
(b) Determine the velocity of the ball and putty just after the collision.
(c) Find the maximum height of the ball and putty after the collision.
A heat engine absorbs 47.0 kJ and exhausts 36.0 kJ of heat each cycle. Calculate its efficiency. What is the work done per cycle
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Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 19.0 m/s at an angle 48.0 degrees; How high above the ground will the ball be when it gets to Julie
A reinforced concrete column 400mm by 400mm and 3.5m high is subjected to a load 160kN. The column shortens by 0.07mm. What is the strain in the column
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