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Author Question: A child sits on a merry-go-round, 1.5 meters from the center. The merry-go-round is turning at a ... (Read 161 times)

aabwk4

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on: Jul 29, 2018
A child sits on a merry-go-round, 1.5 meters from the center. The merry-go-round is turning at a constant rate, and the child is observed to have a radial acceleration of 2.3 m/s2.
 
  How long does it take for the merry-go-round to make one revolution?

Question 2

The electric field strength in the space between two closely spaced parallel disks is 1.0  105 N/C. This field is the result of transferring 3.9 x 109 electrons from one disk to the other.
 
  What is the diameter of the disks? (e = 1.60  10-19 C, 0 = 8.85  10-12 C2/N  m2)
  A) 3.0 cm
  B) 1.5 cm
  C) 4.5 cm
  D) 6.0 cm


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cegalasso

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

5.1 s

Answer to Question 2

A


aabwk4

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Reply 2 on: Jul 29, 2018
Gracias!

cpetit11

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Reply 3 on: Yesterday
Excellent

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