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A turntable is switched from 4.71 rad/s (45rpm) to 3.49 rad/s(331/3) and the platter rotates through an angle of 11.5 rad inreaching the new angular speed. What is angular accelerationof the platter?
Two beams of 1keV neutrons intersect at an angle of 30o. One beam has a neutron density of 1×106 neutrons/cm3. The other beam has a neutron density of 3×106 neutrons/cm3
A large mountain can slightly affect the direction of "down" as determined by a plumb line. How far would the lower end move toward the sphere
A 2000 kg submarine rises straight up to the surface of the ocean. what is the submarine's acceleration
A 54.00 kg pole vaulter running at 10 m/s vaults over the bar. Her speed while she is above the bar is 1.0 m/s. Avoid air resistance, in addition to any energy absorbed by the pole, and determine her altitude as she crosses the bar.
You dip your finger into a pan of water twice each second,producing waves with crest that are separated by 0.11 m. Determine the frequency of these waves
A potter's wheel having a radius 0.49 m and a moment of inertia 10.9 kg·m2 is rotating freely at 52 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
Analog voltmeter A has an equivalent resistance of 2.40 x 105 ? and a full-scale voltage of 50.0 V. What is its full-scale voltage
A red laser from the physics lab is marked as producing 632.8-nm light. When light from this laser falls on two closely spaced slits, What is the wavelength of light produced by the pointer
An ideal gas at 20 ?C consists of 2.2×1022 atoms. 5.9J of thermal energy are removed from the gas. What is the new temperature in ?C
A mountain climber jumps a 2.4 -wide crevasse by leaping horizontally with a speed of 7.2. find the height difference between the two sides of the crevasse
The coyote starts 42.0 m from the brink of a cliff. The roadrunner zips past him at a speed of 18.0 m/s. What is the acceleration of the coyote
A box of 10 kg is being pulled across a floor with a tension force of 50 N. Assume the box started from rest and reached a speed of 2 m/s
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