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The combination of an applied force and a friction force produces a constant total torque of 35.2 N · m on a wheel rotating about a fixed axis. The applied force acts for 6.10 s. During this time, the angular speed of the wheel increases from 0 to 10.5 rad/s. The applied force is then removed, and the wheel comes to rest in 59.4 s. (a) Find the moment of inertia of the wheel. 1 kg · m2 (b) Find the magnitude of the torque due to friction. 2 N · m (c) Find the total number of revolutions of the wheel during the entire interval of 65.5 s. 3 revolutions
Sound travels at a speed of about 344 m/s in air. You see a distant flash of lighting and hear the thunder arrive 7.6 seconds later. How many miles away was the lighting strike
a workman on the scaffolding outside one of the science classrooms drops a wrench. a physics student bored with the
On a frozen pond, a 10.7 kg sled is given a kick that imparts to it an initial speed of vo = 2.00 m/s. find the distance the sled moves before coming to rest
A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure (101.325 kPa) and the density of the fluid in the manometer is 12.0 g/cm3. When the vessel is under 11.5 psi of vacuu..
A 400lb woman stands on a floor in flat soled shoes. A 130lb woman stands on the same floor in a high heel shoe with all her weight is on the heel of the shoe. Which person is more likely to dent the floor?
An 9.0 m, 240 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.60, and the ladder makes a 50.0° angle with the ground. How far up the ladder can an 880 N person climb before the l..
A single circular loop of radius 0.53 m carries a current of 3.2 A in a magnetic field of 0.95 T. What is the maximum torque exerted on this loop
A 2.2 m long uniform plank is supported by two bathroom scales, one at either end. Initially the scales each read 100.0 N. How far is his center of gravity from the soles of his feet
Sketch and describe a floe control loop.
A 4.90-g lead bullet traveling at 550 m/s is stopped by a large tree, what is the increase in temperature of the bullet
A charged particle moves in a uniform magnetic field of 0.817 T with a period of 2.13 × 10-6 s. Find its charge-to-mass ratio.
A father pulls his children in a wagon for 25 minutes covering 1.25 miles on a level sidewalk. What is the average horsepower required
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