Physics, 10.03.2020 19:15 cjd1214812148
The drawing shows a thin, uniform rod that has a length of 0.50 m and a mass of 0.080 kg. This rod lies in the plane of the screen and is attached to the floor by a hinge at point P. A uniform magnetic field of 0.28 T is directed perpendicularly into the plane of the screen. There is a current I = 3.8 A in the rod, which does not rotate clockwise or counter-clockwise. Find the angle θ. (Hint: The magnetic force may be taken to act at the center of gravity.)
Answers: 1
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An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?
Answers: 3
The drawing shows a thin, uniform rod that has a length of 0.50 m and a mass of 0.080 kg. This rod l...
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