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Two children standing on opposite sides of a merry-go-round are trying to rotate it. They each push in opposite directions with forces of magnitude 10.0 N.
a) If the merry-go-round has a mass of 180 kg and a radius of 2.0 m, what is the angular acceleration of the merry-go-round? (Assume the merry-go-round is a uniform disk).
b) How fast is the merry-go-round rotating after 4.0s?
questionair has a small regularly negligible index of refraction. it is 1.0002926. this causes the sun to actually be
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Suppose you're building a scale model of the hydrogen atom, and the nucleus is represented by a ball of radius 3.2 cm (about the radius of a baseball)
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A 255-kg box is being pushed on a surface at a constant velocity using a force F=200 N as shown at right. What is the coefficient of friction between the box and the surface
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