UNIT 1 - Electric Field Exploration
Please answer 2-4
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Physics, 31.03.2021 18:00 julietmusyoki5
UNIT 1 - Electric Field Exploration
Please answer 2-4
Answers: 3
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Aparticle moves according to a law of motion s = f(t), 0 ≤ t ≤ 12, where t is measured in seconds and s in feet. f(t) = cos(πt/6) (a) find the velocity at time t (in ft/s).
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The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
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