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Author Question: The y component of the electric field of an electromagnetic wave traveling in the +x direction ... (Read 72 times)

cnetterville

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on: Jul 29, 2018
The y component of the electric field of an electromagnetic wave traveling in the +x direction through vacuum obeys the equation
 
  Ey = (375 N/C) coskx - (2.20  1014 rad/s)t. What is the wavelength of this electromagnetic wave? (c = 3.0 x 108 m/s)
  A) 0.272 m B) 17.1 m C) 2.72 m D) 1.36 m E) 8.57 m

Question 2

A 6.0- and a 12- resistor are connected in parallel across an ideal 36-V battery. What power is dissipated by the 6.0- resistor?
 
  A) 48 W B) 220 W C) 490 W D) 24 W


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leannegxo

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

B


cnetterville

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

triiciiaa

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Reply 3 on: Yesterday
Wow, this really help

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