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A pitcher pitches a baseball of mass 0.20 kilogram. The baseball arrives at home plate with a speed of 40 m/s and is batted directly back to the pitcher with a return speed of 50 m/s.
Obtain the magnitude of the change of momentum of the ball?
If the bat remains in contact with the ball for 0.12 second, estimate the average force of the bat on the ball?
How much longer should the minimum length of a plane mirror be for 6 ft 3 in man to see his complete head-to-toe image than for a 5 ft 3 in woman to do so?
explain the magnitude of the centripetal acceleration. At what two locations on the x-axis (xpositive, xnegative) is the potential zero.
A 1.7-m length of horizontal pipe has a radius of 6.50 10-3 m. What is the pressure in the flowing water at the left end of the pipe
A ball is dropped from the top of a 48.0m high cliff. At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 20.0m/s . The stone and ball collide part way up. how far from the base did this ..
A string 27.0 centimeter long and fixed at both ends of a musical instrument oscillates in its n = 1 mode. Calculate the frequency of the emitted sound wave
A fine metal foil separates one end of two pieces of opticallyflat glass. How thick is the foil
carnival merry-go-round rotates about a vertical axis at a constant rate, How far is the man from the center of the merry-go-round
A 10-turn circular coil of wire has a di- ameter of 0.45 m. What is the strength of the average emf generated in the coil
A bowling ball with a diameter of 21.0cm is rolling down a level alley surface at 11.4m/s without slipping. If it now starts to roll up a 30 degree incline, how far up the incline will it travel before it stops
A 36.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 20.0 m. What is the centripetal acceleration of the child
you apply a potential difference of 4.5 volts between the ends of a wire that is 2.5 m in length and .654mm in radius. What length of nichrome wire will you use
A circular saw blade accelerates from rest to an angular speed of 3620 rpm in 6.3 revolutions. Find the torque exerted on the saw blade
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