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A stroboscopic photo of a club hitting a golf ball, such as the photo shown in the figure below, was made by Harold Edgerton in 1933. The ball was initially at rest, and the club was shown to be in contact with the ball for about 0.0017 s. Also, the ball was found to end up with a speed of 1.6 102 ft/s. Assuming that the golf ball had a mass of 55 g, find the average force exerted by the club on the ball.
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A 32.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 21.00 m. Calculate the mechanical energy lost due to friction
A student is standing on a ladder as shown in the figure to the right. Each leg of the ladder is 2.7 m long and is hidged at point C. What is the tension in the tierod
A pipe is horizontal and carries oil that has a viscosity of 0.14 Pa s. The volume flow rate of the oil is 5.7 × 10-5 m3/s. What is the absolute pressure at the input end
A model airplane with a mass of 0.757 kg is tethered by a wire so that it flies in a circle 30.9 m in radius, Find the angular acceleration of the airplane when it is in level flight
A fireman 44 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22° above the horizontal. If the speed of stream as it leaves the hose is 40m/s, at what height will stream of water strike the buil..
Blocks with masses of 2.0 , 4.0 , and 6.0 are lined up in a row on a frictionless table. All three are pushed forward by a 57 N force applied to the 2kg block.How much force does the 4 block exert on the 6.0 block.
Calculate the Work required (in eV) to move a stationary electron from the location r3 to r5 in a hydrogen atom
If there are two point along the x-axis, positive q to the right and -q to the left of the orgin. Both with the distance a/2 from the orgin, Find the electric field at that point without using derivatives
A lighted candle is placed 36 cm in front of a diverging lens. The light passes through the diverging lens and on to a converging lens of focal length 10 cm that is 5 cm from the diverging lens. Find the focal length of the diverging lens
you and a friend pull on two ropes to dock a satellite whose mass is 1300 kg. The satellite is initially at position m, How much work did your friend do
The magnetic flux through a coil of wire containing two loops changes from -23Wb to +33Wb in 0.57s. What is the emf induced in the coil
Conversations with astronauts on the lunar surface were characterized by a kind of echo in which the earthbound person's voice was so loud in the astronaut's space helmet, Calculate the distance from Earth to the Moon
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