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A disk-shaped merry-go-round of radius 2.73 meters and mass 165 kilogram rotates freely with an angular speed of 0.621 rev/s. A 55.4 kilogram man running tangential to the rim of the merry-go-round at 3.31 m/s jumps onto its rim and holds on. Before jumping on the merry-go-round, the man was moving in the same direction as the merry-go-round's rim.
Find the final angular speed of the merry-go-round?
two points on a string are observed as a traveling wave passes them. the points are at x1 0 and x2 1 m. the
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.18 m2 and whose thickness is 7 mm. what is the percentage lost by the window
A stunt man drives a car off a 10 m high cliff at a speed of 20m/s. How far does the car land from the basis of the cliff
A skateboarder shoots off a ramp with a velocity of 5.1 m/s,directed at an angle of 59° above the horizontal. The end ofthe ramp is 1.4 m above the ground.
It takes only 9.12N of force to hold up a 1KG metal crown in water, Compute the specific gravity of this metal, and guess what element it might be using a density table
the movable mirrror in a michelson interferometer is displaced to give an interferogram with 1000 local maxima. if the
What is the frequency of the small axial oscillations that the electron will undergo if it is free along the z-axis near the origin.
A space probe is traveling in outer space with a momentum that has a magnitude of 7.70 107 kg · m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 2.20 106 N and a direction opposite to the ..
A helium atom (mass 4.0 u) moving at 600m/s to the right collides with an oxygen molecule (mass 32 u)moving in the same direction at 403 m/s.After the collision, the oxygen molecule moves at 447 m/s to the right. What is the velocity of the helium at..
Two parallel plates, each of area 5.00 cm2, are separatedby 3.00 mm with purified nonconducting water between them. A voltage of 5.00 V is applied between the plates.
The potential difference between the plates of a capacitor is 180V. Midway between the plates; a proton and an electron are released. The electron is released from rest.
a box sits on a horizontal wooden board. the coefficient of static friction between the box and the board is 0.32. you
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