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Waves of amplitude 2.4 cm move along a 2-m string that has a mass of 5 g and a tension of 160 N. What is the power transmitted along the string when it vibrates in its fundamental mode? What is the fundamental frequency of the string?
A 2.0 kg, 20-cm-diameter turntable rotates at 100 rpm on frictionless bearings. Two 500 g blocks fall from above, What is the turntable's angular speed
A cue ball (mass = 0.165 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick, which applies an impulse of +1.61 N·s to the ball. Find the velocity of the second ball just after it is struck
The center of the spherical metal ball of radius R, carrying a negative charge -Q, is located a distance r from the center of a short, thin, neutral copper wire of length L. The induced charges at the two ends of the wire is ±q. Determine the polariz..
A gas with initial conditions (P,V,T)i expands isothermally until the final volume=8.192 times the initial volume, find the ratio of the final pressure to the intial pressure
A 1245-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1955-N crate hangs from the far end of the beam.
Wavelengths of light from a remote galaxy are found to be 1.5 % longer than the corresponding wavelengths measured here on earth. What is the speed of the galaxy relative to earth
A 1250 kg car drives up a hill that is 15.2 high. During the drive, two nonconservative forces do work on the car: (i) the force of friction, and (ii) the force generated by the car's engine. The work done by friction is ?2.91×105 J; the work done by..
A 26.0 kg satellite is in a circular orbit with a radius of 1.60×105 m around the planet Glob. Calculate the speed of the satellite. in m/s
The paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 39.86 m, y = 16.41 m, and t = 2.68 s.
A 0.75m diameter solid sphere may be rotated about an axis through its center by a torque of 11.5m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s.What is the mass of the sphere.
A Carnot engine operates with a cold reservoir temperature of 194 K and has an efficiency of 74.3%. What is the temperature of the hot reservoir
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
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