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A potter's wheel having a radius 0.45 m and a moment of inertia of 11.4 kg · m2 is rotating freely at 48 rev/min. The potter can stop the wheel in 8.0 s by pressing a wet rag against the rim and exerting a radially inward force of 74 N. Find the effective coefficient of kinetic friction between the wheel and the wet rag
wo point charges of equal magnitude are 8.2apart. At the midpoint of the line connecting them, Find the magnitude of the charges
A transformer has 30 turns of wire in its primary and 76 turns in its secondary. What is the output potential difference
A playground carousel is free to rotate about its center on frictionless bearings, and air resistance is negligible, What is the person's mass
Tension is maintained in a string as in the figure below. The observed wave speed is 27 m/s when the suspended mass is 3.0 kg. What is the mass per unit length of the string
q1. a weather vane initially at rest has a moment of inertia of 0.111 kg bull m2 about its axis of rotation. a 53.0 g
question1a relaxed biceps muscle requires a force of 25.0n for an elongation of 3.0 cm below maximum tension the same
A uniform meter stick is in static rotational equilibrium when a mass of 220 g is suspended from the 5.0-cm mark, What is the mass of the meter stick
A rifle with a barrel length of 56 fires an 8 bullet with a horizontal speed of 350. The bullet strikes a block of wood and penetrates to a depth of 14. (a) What resistive force (assumed to be constant) does the wood exert on the bullet? (b) How long..
A 1.20 kg mass on a horizontal spring oscillates on a frictionless surface with a displacement as a function of time given by x(t) = 0.075cos(4.16t â€" 2.45). Find the total energy of the oscillating spring
a box of mass m1kg slides 20sqrt2m down an incline plane of angle pi4 and kinetic friction is 12.what are the
A ball rolling along at speed v without slipping on a horizontal surface while it comes to a hill that rises at a constant angle above the horizontal.
After the reorganization, Barbara owns 25% of Acme's stock. Barbara has an adjusted basis of $400,000 in her Fisher stock. Barbara's basis for her Acme securities is?
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