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Author Question: When two point charges are 2.0 cm apart, each one experiences a 1.0-N electric force due to the ... (Read 63 times)

jeatrice

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on: Jul 29, 2018
When two point charges are 2.0 cm apart, each one experiences a 1.0-N electric force due to the other charge. If they are moved to a new separation of 8.0 cm, the electric force on each of them is closest to
 
  A) 16 N. B) 0.063 N. C) 1.0 N. D) 4.0 N. E) 0.25 N.

Question 2

A person is nearsighted with a far point of 75.0 cm. (a) What focal length contact lens is needed to give him normal vision? (b) What is the power of the corrective lens?
 
  What will be an ideal response?


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yotaSR5

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

B

Answer to Question 2

(a) -75.0 cm (b) -1.33 diopters


jeatrice

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

peter

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Reply 3 on: Yesterday
Wow, this really help

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