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Regulation tennis balls have a mass of 57.5 g. When dropped from a height of 2.69 m they must rebound to a height of 1.92 m to be acceptable for play. What is the loss in kinetic energy when these balls rebound?
Light of intensity I0 and polarized horizontally passes through three polarizes. The first and third polarizing axes are horizontal, but the second one is oriented 20.0° to the horizontal. In terms of I0, what is the intensity of the light that pa..
Both drawings show the same square, each of which has a side oflength L = 0.88 m. An observer O is stationed at onecorner of each square. Two loudspeakers are located at corners ofthe square, as in either drawing 1 or drawing 2.
question1a 4.7-g object moving to the right at 38 cms makes a flexible head-on collision with a 9.4-g object that is
A cannonball is shot (from ground level) with an initial horizontal velocity of 37.0 m/s, What is the speed of the cannonball 3.5 seconds after it was shot
A car (mass = 1100 kg)is traveling at 32 m/s when it collides head on with asport utility vehicle (mass =2500 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle ..
A 0.20 kg mass at an angle of 40 degrees and a 0.275 kg mass at an angle of 155 degrees. Determne the net force of the two know masses
A student in an undergraduate physics lab is studying Archimede's principle of bouyancy. The student is given a brass cylinder and using a triple beam balance finds the mass to be 1.25 kg
While running, a person dissipates about 0.60 J of mechanicalenergy per step per kilogram of body mass. how fast is the person running
An ideal toroidal solenoid has a cross-sectional area of 0.560cm^2 , a mean radius of 12.0cm , and 1650 turns. What is the self-inductance of this solenoid
A force of 725 N accelerates a 325kg object, initially moving at 7.50 m/s, to a final velocity of 28.5 m/s in 16.5 seconds. What was the change in kinetic energy of the object
The right-side rearview mirror of Mike's car says that objects in the mirror are closer than they appear. What is the focal length of the rearview mirror
Three forces of magnitudes F1 = 4.0 N, F2 = 6.0 N, F3 = 8.0 N, F4 = 5.0 N, and F5 = 5.0 N are applied to a block of mass m = 3.0 kg, initially at rest, at angles shown on the diagram. (Figure 1) All angles should be measured from the positive x ax..
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