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Author Question: Which of the following is a longitudinal wave? A) sound B) light C) radio D) all of the above ... (Read 74 times)

jerry coleman

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on: Jul 29, 2018
Which of the following is a longitudinal wave?
 
  A) sound
  B) light
  C) radio
  D) all of the above
  E) none of the above

Question 2

A seed is 15 mm in front of a converging lens, and the image of the seed is 4.0 mm behind the lens. What is the focal length of the lens?
 
  A) 11 mm
  B) 5.5 mm
  C) 3.8 mm
  D) 3.2 mm


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Jbrasil

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

Answer: A

Answer to Question 2

B


jerry coleman

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Reply 2 on: Jul 29, 2018
Excellent

aruss1303

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Reply 3 on: Yesterday
:D TYSM

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