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A rotating wheel needs 8.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 8.00 s interval is 100.0 rad/s. What is the constant angular acceleration of the wheel?
Some asteroid fragments are large enough to not completely burn up in the atmosphere and they end up on the surface of the Earth. how could you determine which type of radiation was being emitted
An ?-particle has a charge of +2e and a mass of 6.64 ? 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.06 X 106 V, What is the speed of the ?-particle
A 4.1kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.3m/s2, find the force exerted by the rope on the bucket.
The proper length of one spaceship is three times that of another. The two spaceships are traveling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to have the same length. If the slower space..
a 65 rm kg student is standing atop a spring in an elevator that is accelerating upward at 3.0rm mrm s2. the spring
A moving particle encounters an external electric field that decreases its kinetic energy from 9820 eVto 7470 eV as the particle moves fromposition A to position B. The electric potentialat A is -51.0 V, and the electric potential at B is +28.9 V.
Consider a ring of radius R with the total charge Q spread uniformly over its perimeter. What is the potential difference between the point at the center of the ring and a point on its axis a distance 2R from the center
The angles with respect to the vertical are Q=10.5°, and T=23.5°. State if true, false, or can not tell. The mass of W can be less than that of Z. The charge on W can be positive and that on Z negative.
A model rocket is constructed with a motor that can provide a total impulse of 39.0 N·s. The mass of the rocket is 0.229 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance.
In a television set the power needed to operate the picture tube comes from the secondary of a transformer. Find the turns ratio Ns/Np of the transformer
A 2.00 kilogram stone is tied to a 0.500-m length of string and swung around a circle at a constant angular velocity of 12.0 rad/s. What is the net torque on the stone regarding the center of the circle?
A ball is thrown horizontally from the top of a 20-m high hill. It strikes the ground at an angle of 45 degrees. With what speed was it thrown
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