Answers: 1
Physics, 21.06.2019 23:30, 1031kylepoe03
Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 ”t to 600 ”t in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?
Answers: 3
Physics, 22.06.2019 00:20, alyvia05
Suppose that an electromagnetic wave which is linearly polarized along the xâaxis is propagating in vacuum along the zâaxis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity Ï, magnetic permeability ” and electric permittivity Δ. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^â1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
Answers: 1
Physics, 22.06.2019 04:30, tinytoonjr8052
Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.
Answers: 3
Physics, 22.06.2019 10:00, blackjack73
The rocket is fired vertically and tracked by the radar station shown. when Ξ reaches 66°, other corresponding measurements give the values r = 32700 ft, rš = 85 ft/sec2, and ÎžË = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
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