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Author Question: Maxwell developed his theory of electromagnetism by combining previous discoveries. He added his own ... (Read 13 times)

gbarreiro

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on: Jul 28, 2018
Maxwell developed his theory of electromagnetism by combining previous discoveries. He added his own original hypothesis that:
 a. changing electric fields produce magnetic fields.
  b. moving electric charges produce magnetic fields.
  c. changing magnetic fields produce electric fields.
  d. electric charges produce electric fields.

Question 2

Two loudspeakers are placed facing each other and driven by the same source at 680 Hz. A listener is positioned between the two speakers on the line separating them, thus creating a constructive interference at the listener's ear. If one of the speakers is gradually pushed toward the listener, how far must it be moved to repeat the condition of constructive interference at the listener's ear? (The speed of sound = 340 m/s.)
 a. 0.13 m
  c. 0.50 m
  b. 0.25 m
  d. 1.00 m


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FergA

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

C


gbarreiro

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

abro1885

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Reply 3 on: Yesterday
:D TYSM

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