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A disk-shaped merry-go-round of radius 3.02 m and mass 159 kg rotates freely with an angular speed of 0.635 rev/s. A 54.1-kg person running tangential to the rim of the merry-go-round at 3.07 m/s jumps onto its rim and holds on. Before jumping on the merry-go-round, the person was moving in the same direction as the merry-go-round's rim. What is the final angular speed of the merry-go-round?
A microwave radio transmitter emits electromagnetic waves of a single wavelength. What is the power of the transmitter
A light ray is directed at the inside of a highly polished silver hemispherical bowl and is incident parallel to the symmetry axis of the bowl. in what direction will it emerge from the bowl
Which of the following is NOT true about the movement of electrons in a simple circuit?
The index of refraction of air is 1, the index of glass 1.55 and the index of water 1.33. Characterize the air bubble as a point source.
A ball thrown straight up from the ground passes a window 5.6 m up. An observer looking out the window sees the ball pass the window again, going down, 2.6s later
Two spheres are launched horizontally from a 1.2 -high table. Sphere is launched with an initial speed of 4.5. What is the time for the sphere to hit the floor
What is velocity of wind that is moving the plane
At what temperature is the speed of sound in helium (ideal gas, = 1.67, atomic mass = 4.003 u) the same as its speed in oxygen gas at 11.0 oC? The speed of sound in oxygen at 11.0°C is 322 m/s.
Two conductors insulated from each other are charged by transferring electrons from one conductor to the other. What is the capacitance of this system
From a cliff 9.5 above a river, a young women of mass m = 45kg, jumps from rest, straight down into the water. At the instant she strikes the water, what is her de Broglie wave length
A car is traveling at 50.0 mi/h on a horizontal highway. If the coefficient of static friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop
A car goes 13 miles east, then due North ending up 25 deg North of East from its initial position. How far due North did it travel
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