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Author Question: How long does it take a light beam to cross a 6. m wide room? If the air were replaced with a ... (Read 15 times)

kwoodring

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on: Jul 27, 2018
How long does it take a light beam to cross a 6. m wide room? If the air were replaced with a transparent medium of index n, how much longer would it take?
 
  What will be an ideal response?

Question 2

A coil of 160 turns and area 0.20 m2 is placed with its axis parallel to a magnetic field of 0.40 T. The magnetic field changes from 0.40 T in the x-direction to 0.40 T in the negative x-direction in 2.0 s.
 
  If the resistance of the coil is 16 , at what rate is power generated in the coil?


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nguyenhoanhat

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

2  10-8 s; n times longer

Answer to Question 2

10.2 W


kwoodring

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Reply 2 on: Jul 27, 2018
Gracias!

rleezy04

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Reply 3 on: Yesterday
Excellent

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