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A hollow wire of outer radius 10 cm and inner radius 5 cm carries a uniformly distributed 12 Amp current. Discover the value of the magnetic field at a) r= 6 cm and b) r= 20 cm. (use ampere slaw)
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.90 m/s at an angle of 15.0° below the horizontal. Find the height from which the ball was thrown
The turntable of a record player rotates initially at 33rev/min and takes 20 s to come to rest. what is the angular acceleration of the turn table
A large box of mass 50kg lies on a frictionless inclined plane at an angle of 30º. What is the Normal Force acting on the box
Scientists want to place a 4200.0 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 1.6 times the radius of Mars above the surface of the planet. obtain the force of attraction between Mars and the satelli..
Sam (75 kg) takes off up a 50 m high, 10 degree frictionless slope on his jet powered skis. how far does Sam land from the base of the cliff
An isolated charged capacitor has horizontal plates. If a thin dielectric is inserted a short way between the plates will it move left or right when it is released?
consider two point particles that have charge e are at rest and are separated by 3.70 x 10-15 m.a how much work was
A tuning fork of unknown frequency is noted to be higher than one marked 512 hz and lower than one marked 1000 hz. You discover resonance points at .11 m and .53 m. Using 347 m/s for speed of sound what is the frequency of the new fork.
Early black-and-white television sets used an electron beam to draw a picture on the screen. What is the speed of electrons in the beam
Coherent ligh of a wavelength 500nm passes through a narrow slit. In the single-slit diffraction pattern observed on a screen that is 4.0m from the slit, what will the width of the central maximum be
A particle's trajectory is described by x=(12t3?2t2)m and y =(12t2?2t)m, What is the particle's direction of motion, measured as an angle from the x-axis, at t=5.0s
a wooden box on a wooden table is pulled at constant speed by a 10n force at a 30 degree angle. what is the mass of the
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