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A golf ball of mass 0.050 kg is at rest on the tee and has a velocity of 102 m/s immediately after being struck. If the club and ball were in contact for 810 ?s, what is the average force exerted on the ball? If the club head has a mass of 357 g, what was the club velocity before the collision?
The fastest measured pitched baseball left the pitcher's hand at a speed of 42.0m/s. what acceleration did he give the ball
A gymnast with mass m1 = 42 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 106 kg and length L = 5 m. Each support is 1/3 of the way from each end. at first the gymnast stands at the left end of..
A meteoroid, heading straight for Earth, has a speed of 14.8 km/s relative to the center of Earth as it crosses our moon's orbit, a distance of 3.84 × 108 m from the earth's center. What is the meteroid's speed as it hits the earth? You can neglect t..
A toy rocket starts at rest, and is fired vertically. The fuel burns for tine t1 = 15.7 s, and the rocket rises with a constant net upward acceleration of magnitude a1 = 7.23 m/s2. calculate the total time the rocket is in the air
To maintain constant velocity, the bicyclist is able to return to the lower applied force from Part A but must remain in the larger gear from Part B ( = 4.64 ). What is , the coefficient of rolling resistance on this road surface
A competitive mini-golf player notices an opponent's ball situated 50cm in front of a wall containing two tunnels. One tunnel leads to the hole, the other to a bunker. The player skill fully putts their ball due East at the opponent's ball with a ..
Kevin has a mass of 94.0 kg and is skating with in-line skates. He sees his 28.50 kg younger brother up ahead standing on the sidewalk, find Kevin's speed just before he grabbed his brother
A sphere that is a perfect blackbody radiator has a radius of 0.130 m, Calculate the net rate at which the sphere radiates energy
Body fat has an energy content of about 38,000 Joules per gram. Suppose your weight has been constant, how much weight will you have gained
Initially an unpolarized light with intensity I is sent through a polarizer with its axis set to zero degrees. what is the angle of the second polarizer
Two capacitors C1 = 3.2 ?F, C2 = 13.5 ?F are charged individually to V1 = 19.0 V, V2 = 5.6 V. Calculate the final potential difference across the plates of the capacitors once they are connected
An LC circuit consists of a 20 mh inductor and a 0.5 if capacitor.maximum instantaneous current is 0.1 A
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