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A half-cylinder of mass m and radius r is released from rest in the position shown. Knowing that the half-cylinder rolls without sliding, determine
(a) Its angular velocity after it has rolled through ugh 90°,
(b) The reaction at the horizontal surface at the same instant.
On a frictionless, horizontal air table, puck A (with mass0.250 kg) is moving toward puck B (with mass 0.330 kg),which is initially at rest. After the collision, puck Ahas a velocity of 0.120 m/s to the left, and puck B has avelocity of 0.830 m/s ..
a 9.00-v battery delivers a current of 1.22 a to the lightbulb filament of a pocket flashlight. a how much charge
1. a pulley of radius 0.3 m is rotating counter-clockwise and is pulling a weight upward. the weight slows the spinning
a girl throws a plastic ring hula hoop to the right with a velocity v0 and a movement that produces a counterclockwise
A very hot piece of iron with mass 1.5kg and initial temperature 755 degrees celcius is placed into a tank of water with total water mass 3.0kg, what is the final equilibrium temperature for the iron and water
An aluminum block slides along a horizontal surface. The block has an initial speed of 11.0 m/s and an initial temperature of 10.7degrees C. The block eventually slides to rest due to friction.
How fast in kilometers per hour, must a sound source be moving toward you to make the observed frequency 5.0% greater than that observed when the source is stationary with respect to you? (Assume that the speed of sound is 340 m/s.)
A wagon is coasting at a speed vA along a straight and level road. When thirty-four percent of the wagon's mass is thrown off the wagon, parallel to the ground and in the forward direction, the wagon is brought to a halt. If the direction in which th..
A mass of 5 kilogram is resting on a frictionless ramp. Determine the mass of the hanging box
Bats emit sounds of frequencies around 35.0 kHz and useecholocation to find their prey. If a bat is moving at the speed of12.0 m/s toward an insect at an air temperature of20.0oC. What frequency is heard by the bat from the reflectedsound?
Two tiny, spherical water drops, with identical charges of -7.20 x 10-17 C, have a center-to-center separation of 1.4 centimeter. Find the magnitude of the electrostatic force acting between them
Find out the rotational inertia of this object (a) about an axis through the center of the triangle and perpendicular to its plane (b) and about an axis that passes through one vertex and the midpoint of the opposite side.
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