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As a 2.0-kg block travels around a 0.50-m radius circle it has anangular speed of 12 rad/s. The circle is parallel to the xy plane and is centered on the z axis, adistance of 0.75m from the origin. The z component of the angular momentum around the originis:
A. 6.0kg · m2/sB. 9.0kg · m2/sC. 11 kg · m2/sD. 14 kg · m2/sE. 20 kg · m2/s
A wire with a resistance of 5.1 ? is drawn out through a die so that its new length is 3 times its original length. Find the resistance of the longer wire
An 11.00 kg crate is placed on a horizontal conveyor belt. The materials are such that static friction = 0.47 and kinetic friction = 0.24.
a person rides up a liftto a mountain top,but the person`s ears fail to "pop"-that is,thepressure of the inner ear does not equalize with the outside atmosphere. what is the magnitude of the net force on each eardrum
In an experiment using an inclined track with a dynamics cart, the computer failed, find the cart's acceleration, mass, and the tension in the string connecting the cart to the accelerating 50g mass
1. a spacecraft that is initially at rest turns on its engine at t 0. if its mass is m 3000 kg and the force from the
How much work was done by the lift on the automobile.
What is the magnitude of the net force on the 5.0 nC charge? What is the direction of the net force on the 5.0 nC charge?
One generator uses a magnetic field of 0.190 T and has a coil area per turn of 0.0425 m2. What magnetic field should be used in the second generator
A door of width 1.0 and height 2.0 weighs 279 and is supported by two hinges, one a distance 0.500 from the top and the other a distance 0.50 from the bottom. Each hinge supports half the total weight of the door.
A 0.55 kg air cart is attached to a spring and allowed to oscillate. You are given the displacement of the air cart from equilibrium to be x = (19.7 cm) cos[(2.64 s-1)t + ?]. Find the maximum kinetic energy of the cart
a small ball of mass m is attached to a very light string of length l that is tied to a peg at point p. what is the
A pendulum makes 24 oscillations in 39s. The period is 1.6 s 1. Find the pendulum's length
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