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A puck with a mass of .113 kg, is spun clockwise around a center. Its original distance from the center of rotation is 49.9 cm, and the puck is moving with a speed of 89.9 cm/s. The string is pulled downward 17.4 cm through the hole in the frictionless table. Determine the work done on the puck.
A ball of mass 0.15 kg is dropped from rest from a height of 1.35 m. It rebounds from the floor to reach a height of 0.96 m. What is the velocity of the ball just before the impact
An elevator is moving downward but has a constand upwardacceleration of a=3.5m/s2. how long dose it take the coin to strike the elevator floo
A fighter plane flying at constant speed 510 m/s and constant altitude 7400 m makes a turn of curvature radius 5300 m. What is his/her apparent weight during the plane's turn
A basketball player makes a jump shot. The 0.700-kg ball isreleased at a height of 1.80 m above the floor with a speed of 7.00m/s. What is the work done on the ball by air resistance
A 5.00 kg box is pushed a distance of 15.0 m up a rough 20.0 degree incline with a constant force of 35.0 N. calculate he kinetic energy of the box after moving 15.0 meters
One afternoon, a couple walks five-sixthsof the way around a circular lake, the radius of which is1.70km. What are the magnitude and direction (relative to due east) ofthe couple's displacement
You combine two thin lenses by placing them in contact so that their axes coincide, Find the focal length of this compound lens
Electrons are accelerated so that their de Broglie wavelength is .083nm. What is the kinetic energy of the electrons so that they have this de Broglie wavelength
The temperature at Furnace Creek in Death Valley reached 134 degrees Fahrenheit on July 10, 1913. What is the speed of sound in air at this temperature
The Stanford Linear Accelerator (SLAC) is an electron accelator that provides an oscillating \radio-frequency" (RF) electric field in the form of a wave that stays in synchronism with the electrons being accelerated.
A microwave oven operates at 2.4 GHz with an intensity inside the oven of 2350W/m^2. What is the amplitude of the oscillating electric field
The great, grey-green, greasy Zambezi River flows over Victoria Falls in south central Africa. what is the velocity of the water when it hits the bottom
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