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A circular coil of 16 turns and radius 10 cm carrying a current of 0.75 A rests with its plane normal to an external field of magnitude 5.0 × 10-2 T. The coil is free to turn about an axis in its plane perpendicular to the field direction. When the coil is turned slightly and released, it oscillates about its stable equilibrium with a frequency of 2.0 s-1. What is the moment of inertia of the coil about its axis of rotation?
The total translational kinetic energy of the molecules of a sample of gas at 421 k is 3.95x10^4j. Find the average translational kinetic energy of a single molecule
The Lyman series results from transitions of the electron in hydrogen in which the electron ends at the n=1 energy level. calculate the wavelengths of the photons emitted in the transitions from the energy states
Find out (a) capacitance and (b) maximum voltage that can be applied to a Teflon-filled parallel- plate capacitor having a plate area of 175 cm2 and an insulation thickness of 0.040 mm.
A moving particle encounters an external electric field that decreases its kinetic energy from 9910 eV to 6840 eV as the particle moves from position A to position B.
A person in a rocking chair completes 15 cycles in 17s, What are the period of the rocking
a surveyor 100 m from a long straight 200 kv dc power line suspects that its magnetic field may equal that of the earth
A 54.6 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 1.18×10-7 ?m and the density is 7.82 g/cm3. What length is required
A particle having a mass of 0.200 g carries a charge of ?2.34×10^?8 C. What are the magnitude of the minimum magnetic field that will balance the earth's gravitational pull on the particle
Only two forces act on a 3.0-kg mass. One of the forces is 9.0 N east, and the other is 8.0 N in the direction of 62° north of west. What is the magnitude of the acceleration of the mass
Three point charges are located near a spherical Gaussian surface of radius R = 6 cm. What is the electric flux through this surface
An empty 1070 kg car has its CM2.50 m behind the front of the car. Howfar from the front of the car will the CM be when two people sit inthe front seat 2.80 m from the front of the car, and three peoplesit in the back seat 3.90 m from the front? Assu..
A visitor to a lighthouse wishes to determine the height of the tower. She ties a spool of thread to a small rock to make a simple pendulum, What is the height of the tower
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