In a traveling electromagnetic wave, the electric field is represented mathematically as E = E0 sin[(1.08  1010 s−1)t − (36 m−1)x] where E0 is the maximum field strength. This equation is an adaptation of  y = A sin   2πft −  2πx λ   . (a) What is the frequency of the wave?  Hz(b) This wave and the wave that results from its reflection can form a standing wave, in a way similar to that in which standing waves can arise on a string (see Section 17.5). What is the separation between adjacent nodes in the standing wave? m

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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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In a traveling electromagnetic wave, the electric field is represented mathematically as

E = E0 sin[(1.08  1010 s−1)t − (36 m−1)x]

where E0 is the maximum field strength. This equation is an adaptation of 

y = A sin
 
2πft − 
2πx
λ
 
.
(a) What is the frequency of the wave?
  Hz

(b) This wave and the wave that results from its reflection can form a standing wave, in a way similar to that in which standing waves can arise on a string (see Section 17.5). What is the separation between adjacent nodes in the standing wave?
 m
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