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Author Question: The magnetic forces exerted by a permanent magnet are due to A) electrons moving in atoms. B) ... (Read 89 times)

kamilo84

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on: Jul 29, 2018
The magnetic forces exerted by a permanent magnet are due to
 
  A) electrons moving in atoms.
  B) equal and opposite magnets placed on each of the two poles.
  C) a miracle.
  D) large-scale macroscopic electric currents on the surface of the magnet.
  E) equal and opposite charges placed on each of the two poles.

Question 2

A water rocket can reach a speed of 75 m/s in 0.050 seconds from launch. What is its average acceleration?
 
  What will be an ideal response?


Sophiapenny

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

A

Answer to Question 2

1500 m/s2


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kamilo84

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Reply #2 on: Jul 29, 2018
Thank you!


Sophiapenny

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Reply #3 on: Jul 29, 2018
Always glad to help...


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