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Q1. Two balls, of masses = 43kg and = 65kg, are suspended. The lighter ball is pulled away to a 66 angle with the vertical and released. Assume that the positive axis is directed to the right. What is the velocity of lighter ball before impact? What is the velocity of each ball after the elastic collision? What would be the greatest height of each ball after an elastic collision?
Q2. An astronaut travels to an alternate universe that contains infinite charged plane and no other charged objects. The astronaut observes that the electric field in this universe has a magnitude of 1.20 N/C everywhere and points directly away from the plane. Establish the charge density of the plane.
Find speed of the block at the bottom of the ramp. What is tangential acceleration of a bug on the rim of a 78 rpm record of diameter 7.41 in. if the record moves from rest to its final angular speed in 4 s.
What fraction of the initial kinetic energy was transferred
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What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer? Imagine the speed of sound in air to be 340 m/s.
What is the horizontal component of the ball velocity
What is the charge on each
A harmonic wave travels in a wire with amplitude 6.05 mm, wavelength 0.451 m, and frequency 462 Hz. What is speed with which the wave travels.
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