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Author Question: A 15.0-m rope is pulled taut with a tension of 140 N. It takes 0.545 s for a wave to propagate along ... (Read 16 times)

kellyjaisingh

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on: Jul 29, 2018
A 15.0-m rope is pulled taut with a tension of 140 N. It takes 0.545 s for a wave to propagate along the rope. What is the mass of the rope?
 
  A) 1.67 kg
  B) 2.10 kg
  C) 2.77 kg
  D) 5.09 kg
  E) 3.19 kg

Question 2

The energy density of an electromagnetic wave is
 
  A) entirely in the electric field.
  B) entirely in the magnetic field.
  C) 1/4 in the electric field and 3/4 in the magnetic field.
  D) 1/4 in the magnetic field and 3/4 in the electric field.
  E) equally divided between the magnetic and the electric fields.


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shailee

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

C

Answer to Question 2

E


kellyjaisingh

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Reply 2 on: Jul 29, 2018
Wow, this really help

isabelt_18

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Reply 3 on: Yesterday
:D TYSM

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