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Author Question: A person is using a rope to lower a 5.0-N bucket into a well with a constant speed of 2.0 m/s. What ... (Read 72 times)

Kikoku

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on: Jul 29, 2018
A person is using a rope to lower a 5.0-N bucket into a well with a constant speed of 2.0 m/s. What is the magnitude of the force exerted by the rope on the bucket?
 
  A) 0.00 N
  B) 2.0 N
  C) 5.0 N
  D) 10 N
  E) 49 N

Question 2

A researcher is investigating a cubic crystal with x rays. He is looking at Bragg reflection from the planes parallel to the cube faces.
 
  He finds that when using x rays of 0.165 nm a strong first maximum occurs when the beam makes an angle of 23.5 with the planes. What is the spacing of adjacent atoms in the crystal?


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heinisk01

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

C

Answer to Question 2

0.207 nm


Kikoku

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Reply #2 on: Jul 29, 2018
Thanks


heinisk01

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Reply #3 on: Jul 29, 2018
Welcome :)


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