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Author Question: You roll a ball off a table and at the same time drop a second ball straight down from the edge of ... (Read 97 times)

biggirl4568

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on: Jul 28, 2018
You roll a ball off a table and at the same time drop a second ball straight down from the edge of table. The second ball reaches the ground ____________ the first ball reaches the ground.
 a. before
  b. at the same time that
  c. after
  d. before or after, depending on the masses,
  e. cannot be determined

Question 2

A schematic of a simple laser is shown here. Which of the following are characteristics of light produced by a laser?
 a. Very narrow range of wavelengths.
  b. Highly directional beam.
  c. Very intense beam.
  d. Light that is coherent.
  e. All of the above.


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Sweetkitty24130

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Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

e


biggirl4568

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Reply 2 on: Jul 28, 2018
Wow, this really help

cam1229

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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