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A grinding wheel is in the form of a uniform solid disk of radius 6.99 cm and mass 2.02 kg. It starts from rest and accelerates uniformly under the action of the constant torque of 0.605 N · m that the motor exerts on the wheel.
(a) How long does the wheel take to reach its final operating speed of 1 100 rev/min.
(b) Through how many revolutions does it turn while accelerating?
Find the mode configurations and frequencies for transverse oscillations of a beaded string of 5 beads with one end fixed and one end free to move. Plot the five points on a dispersion relationship ω vs k
A meniscus lens is concave on one side and convex on the other. Find the refractive power (diopters) of a meniscus lens
A 2.40 kg object rotates around along a horizontal circle of radius r=0.720m. Obtain the centripetal acceleration and centripetal force
A very large number (N+1) polaroids are arranged in a sandwich, The transmission axis of each polaroid is at a constant angle, with respect to its predecessor
The frequency of a steam train whistle as it approaches you is 538Hz. After it passes you, its frequency is 486Hz. How fast was the train moving
You've signed up for a trip to Mars. After being cooped up in the tight space capsule for months, you are very excited to finally arrive and take a standing leap straight upward. How high will you jump
Two cars start at the origin from rest. The first car accelerates for 3.0s and then continues at a constant velocity, find the distance traveled by the first car
An object, oscillating harmonically in the x-coordinate, follows a trajectory described by the following equation: x(t) = 3.83 cm *sin(4.18 s-1 *t). What is the maximum speed attained by the object
A whale sends an undersea signal to its mate and then gets a response 4.5 seconds later. How far away is the whales mate
A 0.80 kg framed picture hangs by a light wire on a nail. The 50 cm long wire is attached to both ends of the 40 cm wide picture frame, What is the tension in the wire
A 3.0 g. copper penny has a positive charge of 0.52 millicoulombs. What decimal fraction of its electrons has it lost
A ray of light strikes a block of some transparent material at an angle of incidence of 60degrees. Find the speed of light in the block
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