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Author Question: Two strings of identical mass and length are stretched with their ends fixed, but the tension in one ... (Read 109 times)

Arii_bell

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on: Jul 29, 2018
Two strings of identical mass and length are stretched with their ends fixed, but the tension in one string is 1.10 times greater than in the other. Waves on the string with the lower tension propagate at 35.2 m/s.
 
  The fundamental frequency of that string is 258 Hz. What is the beat frequency when each string is vibrating at its fundamental frequency? A) 11.0 Hz
  B) 9.00 Hz
  C) 13.7 Hz
  D) 12.6 Hz
  E) 17.1 Hz

Question 2

The maximum value of the electric field in an electromagnetic wave is 1.5 V/m. What is the maximum value of the magnetic field associated with this wave?
 
  A) 3.0 nT
  B) 4.0 nT
  C) 5.0 nT
  D) 6.0 nT
  E) 7.0 nT


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sokh

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

D

Answer to Question 2

C


Arii_bell

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

tanna.moeller

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Reply 3 on: Yesterday
Gracias!

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