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The stainless steel annular disk is allowed to rotate on a frictionless table with the rotation axis at its center. The disk has a small cylinder rigidly mounted at the top concentrically. The cylinder's radius is 13.2 mm, and the mass of the cylinder is negligible. A string is wrapped around the cylinder, and a hanging mass of 21.1 g is tied at the other end of the string. When the mass falls under gravity, it causes the stainless steel annular disk to rotate. Ignoring the string's mass, and assuming that the string's motion is frictionless, what is the angular acceleration of the stainless steel annular disk?
An ice skater has a moment of inertia of 2.5 kg*m2 when his arms are outstretched and a moment of inertia of 1.0 kg*m2, what will his angular speed be when they are tucked in
A 1250 kg car is moving at 5.0 m/s collides with and couples with the 750 kg car. What is the resulting speed of the coupled cars.
A flight attendant pulls her 63-N flight bag a distance of 277-m along a level airport floor at a constant velocity. The force she exerts is 35N at an angle of 57° above the horizontal. Determine the work completed by the force of friction on flig..
Light is diffracted when it passes through a narrow single slit. What happens to the width of the central maximum in the diffraction pattern when the width of the slit trough which light passes is reduced.
Spacecraft A is being overtaken by spacecraft B that is traveling at 0.40c relative to spacecraft A. How far away is spacecraft A when the missile is fired according to spacecraft B
The cosmic background radiation permeating the universe has the spectrum of a 2.7 K thermal radiator. What is the peak wavelength
A concave mirror forms a real image twice as large as the object. The object is then moved such that the new real image produced is three times the size of the object. If the image was moved 62.5 cm from its initial position, how far was the objec..
The mass of an object is 332 g, and its volume is determined to be 25 cc. What is the mass density of the object
An automobile tire is rated to last for 40,000 miles. To an order of magnitude, through how many revolutions will it turn?
At t = 0 it is known that of 1000 neutrons in a one-dimensional box of width 10-5 cm, 100 have energy 4E1, How many neutrons are in the left half of the box
q1. an object hangs from a spring balance. the balance indicates 40 n in air and 30 n when the object is submerged in
wave crest pass the bow of anchored boat every 3 seconds. The distance between two crest is 6.6 m. what type of wave is it (longitudinal or transverse) and how fast is it traveling
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