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Author Question: Your radio is tuned to 98 on the FM dial. What electromagnetic wave frequency is your radio ... (Read 148 times)

go.lag

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on: Jul 29, 2018
Your radio is tuned to 98 on the FM dial. What electromagnetic wave frequency is your radio receiving, and how fast is this wave traveling?
 
  A) 98  106 Hz, at the speed of sound
  B) 98,000 Hz, at the speed of sound
  C) 98 Hz, at a speed of 300,000 km/s
  D) 98,000 Hz, at a speed of 300,000 km/s
  E) 98  106 Hz, at a speed of 300,000 km/s

Question 2

A stationary firecracker explodes, breaking into two parts of equal mass. One part is moving north at 20 m/s. The velocity of the other part is
 
  A) 20 m/s with a direction that's impossible to predict without more information.
  B) also northward at 20 m/s.
  C) impossible to predict without more information.
  D) zero.
  E) southward at 20 m/s.


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zoeyesther

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

E

Answer to Question 2

E


go.lag

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


zoeyesther

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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