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A uniform spherical yoyo has a light string wound around it. The yoyo is allowed to fall under gravity. What is the acceleration of the center of the yoyo?
Two slits spaced 0.280mm apart are placed 0.640m from a screen and illuminated by coherent light with a wavelength of 680nm. What is the distance on the screen from the center of the central maximum to the first minimum
A stand, string, a paper or plastic cup, a nail, a roll of paper towels or similar sized paper, coloured sand, or some other dry powdery product, and a ruler or measuring tape.
Cowboy joe wishes to shoot his assaiat by ricocheting a bullet off a mirrored metal plate. To do so, must he simply aim at the mirrored image of his assaiant? Explain.
Two spherical objects with a mass of 8.05 kg each are placed at a distance of 2.31 m apart. How many electrons need to leave each object so that the net force between them becomes zero
A current of 0.500 A flows through an aluminum wire. The aluminum wire has a length of 2.00 m, what is the electron drift speed in the wire
A man drags a 74.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
A person can jump a horizontal distance of 2.82m on Earth, where the free-fall acceleration, g = 9.81 m/s2. How far might the person jump on the moon, where the free-fall acceleration is g/6? How far could the person jump on Mars where the accelerati..
Two polaroid sheets are arranged so that their transmission axes are at 90 degrees to each other. What is the intensity of light leaving the final sheet
A point moves along the x-axis with its position, x, at time t given by x(t) = t3 - 3t2 + 2t - 1. Which of the following is the acceleration when t = 2?
a charge q= 8 uC is moving along the x axis with a velocity of v=4 x 10^4 m/s. a magnetic field of magnitude B=3T is along the y-axis. a) find the magnitude and direction of the net force acting on the charged particle.
A truck of mass 10012 kg moving at a speed of 63.2 mph has lost its brakes. How far along the incline (?x) does the truck travel before it stops
A 45 kg trunk is pushed 7.8 m at constant speed up a 30° incline by a constant horizontal force. calculate the work done by the applied horizontal force
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