Q: A thin uniform rod has a length of 0.500 m
A thin uniform rod has a length of 0.500 m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end and is stationary. The rod has...
See AnswerQ: A thin, uniform metal bar, 2.00 m long
A thin, uniform metal bar, 2.00 m long and weighing 90.0 N, is hanging vertically from the ceiling by a frictionless pivot. Suddenly it is struck 1.50 m below the ceiling by a small 3.00-kg ball, init...
See AnswerQ: In Section 11.2 we always assumed that the value of
In Section 11.2 we always assumed that the value of g was the same at all points on the body. This is not a good approximation if the dimensions of the body are great enough, because the value of g de...
See AnswerQ: A uniform, 4.5-kg, square, solid
A uniform, 4.5-kg, square, solid wooden gate 1.5 m on each side hangs vertically from a frictionless pivot at the center of its upper edge. A 1.1-kg raven flying horizontally at 5.0 m/s flies into thi...
See AnswerQ: The rotor (flywheel) of a toy gyroscope has mass 0
The rotor (flywheel) of a toy gyroscope has mass 0.140 kg. Its moment of inertia about its axis is 1.20 × 10-4 kg.m2. The mass of the frame is 0.0250 kg. The gyroscope is supported on a s...
See AnswerQ: A certain gyroscope precesses at a rate of 0.50 rad
A certain gyroscope precesses at a rate of 0.50 rad/s when used on earth. If it were taken to a lunar base, where the acceleration due to gravity is 0.165g, what would be its precession rate?
See AnswerQ: The Hubble Space Telescope is stabilized to within an angle of about
The Hubble Space Telescope is stabilized to within an angle of about 2-millionths of a degree by means of a series of gyroscopes that spin at 19,200 rpm. Although the structure of these gyroscopes is...
See AnswerQ: A 0.120-kg, 50.0-cm
A 0.120-kg, 50.0-cm-long uniform bar has a small 0.055-kg mass glued to its left end and a small 0.110-kg mass glued to the other end. The two small masses can each be treated as point masses. You wan...
See AnswerQ: A uniform ladder 5.0 m long rests against a frictionless
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 160 N. The coefficient of static friction between the foot of the ladd...
See AnswerQ: A diving board 3.00 m long is supported at a
A diving board 3.00 m long is supported at a point 1.00 m from the end, and a diver weighing 500 N stands at the free end (Fig. E11.11). The diving board is of uniform cross section and weighs 280 N....
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