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A centrifuge rotor rotating at 15,000 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.30 m·N. If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many revolutions will the rotor turn before coming to rest? How long will it take?
A 33 turn circular coil of radius3.00 cm and resistance 1.00 Ω isplaced in a magnetic field directed perpendicular to the plane ofthe coil. The magnitude of the magnetic field varies in timeaccording to the expression B = 0.0100t +0.0400t2, where ..
Assume that a 7.0 cm diameter, 120 W light bulb radiates all its energy as a single wavelength of visible light. Estimate the electric field strength at the surface of the bulb
Two astronauts comparing lunches. One has an apple and the otherhas an orange. They decide to trade. Astronaut 1 tosses the0.130 kg apple toward Astronaut 2 with a speed of 1.11m/s. Find the final speed and direction of the apple
Consider a two-dimensional flow field expressed in terms of the cylindrical coordinate system (r, ?, z), where all flow variables are independent.
A plastic sphere floats in water by 50.0% of its volume submerged. This same sphere floats in glycerine with 40.0% of its volume submerged. Decide the densities of (a) the glycerine and (b) the sphere.
A ball with a mass of 0.580 is initially at rest. It is struck by a second ball having a mass of 0.415 , initially moving with a velocity of 0.260 toward the right along the axis. What is the change in the total kinetic energy of the two balls
A cubical block of ice 46.0 cm on a side is placed on a level floor over a speck of dust. Discover the location of the image of the speck as viewed from above. The index of refraction of ice is 1.309.
a charge of 35.0 nc is placed in a uniform electric field that is directed vertically upward and that has a magnitude
A +10uC charge is 20cm away from a -40uC charge. Detrmine the field of intensity
an iron cable .80cm in diameter and 25 m long stretches 1.27 cm under a 5100N load a mole of iron has a mass of 56 grams, What is the stiffness ks,i of a single interatomic spring
Two long parallel wires are separated by 3.2 mm. The current flowing in one of the wires is twice that in the other wire. what are the values of the two currents
A sound wave with a frequenc of 512 Hz and a wavelenth of 2.99 m is directed toward the bottom of a lake to measure its depth. If the echo of the sound from the bottom is heard 0.25 seconds later, how deep is the lake?
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