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A pitcher throws a 0.140 kg baseball, and it approaches the bat at a speed of 35.0 m/s. The bat does Wnc = 75.0 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above the point of impact.(Answer in m/s)
In the Compton effect, an X-ray photon of wavelength 0.31 nm is incident on a stationary electron. What is the wavelength of the scattered photon
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm. What is the weight of the bananas in newtons
Crossfire was a popular board game in which players attempted to propel a "puck" forward towards their opponet's side by shooting metal balls at it. What is the maximum speed a player can impart to the puck with a single shot
Two identically charged particles separated by a distance of 6.5 m repel each other with a force of 8.5 N. What is the magnitude of the charges
An AC power generator produces 46 A (rms) at 3600 V. The voltage is stepped up to 100000 V by an ideal transformer, and the energy is transmitted through a long-distance power line that has a resistance of 100 . What propotion of the power deliver..
A racing car start from rest in the distance and accelerates with a uniform rate of speed 35m/s in 11 sec moving in a circular path of radius 500 m assuming constant tangential acceleration find (1) the tangential acceleration. (2) The centripetal..
The damage caused by electric shock depends on the current flowing through the body; 1 mA can be felt and 5 mA is painful. What is the minimum voltage placed across the arms that would produce a current that could be felt by a person with dry skin
A vessel at rest at the origin of an xy coordinate system explodes into three pieces. Just after the explosion, one piece, of mass m, moves with velocity, what is the magnitude of the velocity of the third piece
A 1000 kg car carrying four 84 kg people travels over a %u201Cwashboard%u201D dirt road with corrugations 3.8 m apart, by how much does the car body rise on its suspension
A 60 kg skier is in a tuck and moving straight down a 30 degree slope. What is the resultant of the external forces that act on the skier
If a disco disk is rotating with a person on it on the outer side, then if he moves inside (towards the center), the angular velocity will change-How will the energy be conserved.
The outside mirror on the passenger side of a car is convex and has a focal length of -5.7 m. compute the magnification of the mirror
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