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Author Question: The focal length of a convex mirror is -20 cm. What is its radius of curvature? A) -10 cm B) 40 ... (Read 44 times)

karateprodigy

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on: Jul 29, 2018
The focal length of a convex mirror is -20 cm. What is its radius of curvature?
 
  A) -10 cm
  B) 40 cm
  C) -40 cm
  D) -20 cm
  E) 20 cm

Question 2

A golf club hits a golf ball with a force of 2400 N. The golf ball hits the club with a force
 
  A) slightly less than 2400 N.
  B) exactly 2400 N.
  C) slightly more than 2400 N.
  D) close to 0 N.
  E) Cannot be determined without additional information.


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wergv

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

C

Answer to Question 2

B


karateprodigy

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Reply 2 on: Jul 29, 2018
:D TYSM

xiaomengxian

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Reply 3 on: Yesterday
Gracias!

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