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Author Question: What is the frequency (in Hz) of a wave whose displacement is given y = 0.5 sin(0.20x + 120t), where ... (Read 33 times)

vinney12

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on: Jul 27, 2018
What is the frequency (in Hz) of a wave whose displacement is given y = 0.5 sin(0.20x + 120t), where x and y are in cm and t in seconds?
 
  A) 0.5 Hz
  B) 19. Hz
  C) 120 Hz
  D) 10 Hz
  E) 0.120 kHz

Question 2

Consider an RLC circuit. The impedance of the circuit increases if R increases.
 
  A) always true
  B) true only if XL is less than or equal to XC
  C) true only if XL is greater than or equal to XC
  D) never true


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AngeliqueG

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


vinney12

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

smrtceo

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Reply 3 on: Yesterday
Gracias!

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