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A barefoot field-goal kicker imparts a speed of 37 meter per second to a football initially at rest. If the football has a mass of 0.21 kilogram and the time of contact with the ball is 0.027 second, find the force exerted by the ball on the kicker foot? Answer in units of N.
What was the final temperature of the coins. What is the train's acceleration after its wheel begins to stick.
The rope makes an angle of 70° with respect to the vertical. What is the tangential speed of the ball.
what is the net force exerted by these two charges on a third charge 50.5 placed between and at -1.230 ? your answer
A 1550 kg car drives around a flat 200 m diameter circular track at 30 m/s. What is the magnitude and direction of the net force on the car
A Machine Gun is attached to a railroad car that is free to roll on a frictionless track. If the railroad car of mass 62,500 kilogram is initially at rest, compute how many bullets of mass 25 gram would have to be fired
Find the magnitude of the total force of the traction apparatus applied to the leg, assuming ? = 20°, the weight of the leg is 19 N and the weight hanging from the traction apparatus, m, is also 19 N
A piece of insulated wire is shaped into a figure 8, as shown in Figure P31.18. The radius of the upper circle is 5.00 cm and that of the lower circle is 9.00 cm. What is the magnitude of the induced current in the wire
solve the following problems. you must show all work for fullpartial credit. when complete attach a typed cover sheet
A piece of audio equipment is said to have a signal-to-noise ratio of 52 dB. Obtain the ratio of intensities of the signal and the background noise
A 2.00-g charged particle is released from rest in a region that has a uniform electric field vector E = (590 N/C) i hat. After traveling a distance of 0.470 m in this region, the particle has a kinetic energy 0.150 J.
A 0.550 {\rm kg} glider on an air track is attached to the end of an ideal spring with force constant 458 {\rm N}/{\rm m}; Compute the total mechanical energy of the glider at any point in its motion
A power plant burns coal and generates an average of 600.0 MW of electrical power, Find the total electrical energy generated by the plant in a 30-day period
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