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Author Question: In order to produce a sustained interference pattern by light waves from multiple sources, which of ... (Read 36 times)

809779

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on: Jul 28, 2018
In order to produce a sustained interference pattern by light waves from multiple sources, which of the following conditions must be met?
 a. Sources are monochromatic. c. Both choices a and b are valid. b. Sources are coherent.
  d. None of these are valid.

Question 2

A tank with a volume of 0.200 m3 contains 27.0C helium gas at a pressure of 63.5 atm. How many balloons can be blown up if each filled balloon is a sphere 30.0 cm in diameter at 27.0C and absolute pressure of 1.20 atm? Assume all the helium is transferred to the balloons.
 a. 1180 balloons
  c. 749 balloons
  b. 884 balloons
  d. 375 balloons


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cadimas

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

C

Answer to Question 2

C


809779

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Reply 2 on: Jul 28, 2018
:D TYSM

peter

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Reply 3 on: Yesterday
Wow, this really help

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