If electric and magnetic field strengths vary sinusoidally in time, being zero at t = 0, then E = E0 sin(2?ft) and B = B0 sin(2?ft). Let f = 4.50 GHz here. (a) After t = 0, when are the field strengths first zero? (Give your answer in seconds.) s (b) After t = 0, when do they first reach their most negative value? (Give your answer in seconds.) s
If electric and magnetic field strengths vary sinusoidally in time, being zero at t = 0, then E = E0 sin(2?ft) and B = B0 sin(2?ft). Let f = 4.50 GHz here. (a) After t = 0, when are the field strengths first zero? (Give your answer in seconds.) s (b) After t = 0, when do they first reach their most negative value? (Give your answer in seconds.) s
Physics for Scientists and Engineers, Technology Update (No access codes included)
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Author:Raymond A. Serway, John W. Jewett
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Chapter34: Electromagnetic Waves
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Problem 34.7P: Suppose you are located 180 in from a radio transmitter. (a) How many wavelengths are you from the...
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If electric and magnetic field strengths vary sinusoidally in time, being zero at
t = 0,
then
E = E0 sin(2?ft)
and
B = B0 sin(2?ft).
Let
f = 4.50 GHz
here.(a) After t = 0, when are the field strengths first zero? (Give your answer in seconds.)
s
(b) After t = 0, when do they first reach their most negative value? (Give your answer in seconds.)
s
(c) How much time (in s) is needed for them to complete one cycle?
s
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