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Author Question: A 22-F capacitor is connected across a 120 V (rms) 60 Hz source. What is the peak current in this ... (Read 37 times)

jho37

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on: Jul 29, 2018
A 22-F capacitor is connected across a 120 V (rms) 60 Hz source. What is the peak current in this case?
 
  A)
 
  0
  B)
 
  1.0 A
  C)
 
  10.0 A
  D)
 
  0.10 A
  E)
 
  1.4 A

Question 2

Explain how sonar is used to locate underwater objects.
 
  What will be an ideal response?


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ririgirl15

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

E

Answer to Question 2

The reflection of sound is used to determine distance. A transmitter sends out a sound pulse through the water, and a detector receives its reflection, or echo, a short time later. This time interval is carefully measured, and from it the distance to the reflecting object can be determined since the speed of sound in water is known.


jho37

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


ririgirl15

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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