Maximum magnitude of magnetic field
An electromagnetic plane wave in vacuum has a maximum electric field of magnitude Emax = 218 N/C and a frequency of 23 MHz. Find the maximum magnitude of magnetic field, B, in this EM wave.
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The Supreme Court struck down the Plessy v Ferguson, separate but equal facilities, when they ruled on the Brown v Board of Education case. The case came before the Supreme Court in 1954.
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A grinding wheel of radius 0.350 m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. The constant torque produced by this force is 75.0 N · m. Find the magnitude of the friction
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