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Author Question: An ideal pulley changes the direction of the tension in a string without changing its magnitude. ... (Read 146 times)

futuristic

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on: Jul 29, 2018
An ideal pulley changes the direction of the tension in a string without changing its magnitude.
 
  Indicate whether the statement is true or false

Question 2

The energy per unit volume in an EM wave is
 
  A)
 
  equally divided between the electric and magnetic fields.
  B)
 
  almost entirely in the electric field.
  C)
 
  indeterminate.
  D)
 
  almost entirely in the magnetic field.
  E)
 
  zero.


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duke02

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

TRUE

Answer to Question 2

A


futuristic

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Reply 2 on: Jul 29, 2018
Excellent

brbarasa

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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