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A wheel of diameter 0.3 m is rotating with an angular velocity of 3 rad/s and slowing under a constant acceleration of -3 rad/s2. Calculate everything possible about the motion, starting with, say, its angular velocity after 0.4 s.
a 2.20 102-n force is pulling an 80.0-kg refrigerator across a horizontal surface. the force acts at an angle of
The primary windings of a transformer, which has an 65% efficiency, are connected to 110 V ac. Calculate the current through the primary windings of the transformer
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. What is the difference in temperature between the inner and outer sufaces of the aluminum bottom of the pot
A 280g wood block is firmly attached to a very lighthorizontal spring. how far beyond its equilibrium position will it stretch at its firstmaximum extension
A 1460-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16300 N on the submarine, What is the submarine's acceleration
A 0.504 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
A converging lens forms an image that is one half the size of the object when the object is placed 80.0 cm in front of the lens. Where the object should be placed in order to produce an image that is twice the size of the object?
What tension in Newtons should a 50cm length of string support in order to whirl an attached 2000g stone in a circular path at 5 m/s.
You drop a stone into a deep well and hear it hit the bottom 1.80 s later. This is the time it takes for the stone to fall to the bottom of the well, plus the time it takes for the sound of the stone hitting the bottom to reach you. Sound travels ..
the star s0-2 of spectral class b1 v orbits the central black hole at the galactic center on an orbit with a semimajor
A jogger on a circular track that has a radius of 0.250 km runs adistance of 1.00 km. What angular distance does the jogger cover in radians
A sound wave propagating in air has a frequency of 4.45 kHz. Obtain the change in wavelength when the wave, initially traveling in a region where T = 27°C, enters a region where T = 11.5°C
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