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A carnival merry-go-round rotates about a vertical axis at a constant rate. A man standing on the edge has a constant speed of
3.39 m/s and a centripetal acceleration of magnitude 2.13 m/s2. Position vector locates him relative to the rotation axis. (a) What is
the magnitude of 7? What is the direction of 7 when a is directed (b) due east and (c) due south?
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Physics, 22.06.2019 10:40, rainbowboi
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 11:10, cmflores3245
While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.
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Physics, 22.06.2019 14:20, yourgirlmaya
The energy released by a nuclear fusion reaction is produced when
Answers: 1
Physics, 22.06.2019 14:30, Paigex3
In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.
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A carnival merry-go-r...
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