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Author Question: Light from an incandescent wire travels through a cool gas and is then dispersed into a(n) ... (Read 31 times)

bobthebuilder

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on: Jul 28, 2018
Light from an incandescent wire travels through a cool gas and is then dispersed into a(n) ______________ spectrum.
 Fill in the blank(s) with correct word

Question 2

A long hollow cylindrical conductor (inner radius = 2.0 mm, outer radius = 4.0 mm) carries a current of 24 A distributed uniformly across its cross section. A long wire which is coaxial with the cylinder carries an equal current in the opposite direction. What is the magnitude of the magnetic field 3.0 mm from the axis?
 a. 0.82 mT
  b. 0.93 mT
  c. 0.70 mT
  d. 0.58 mT
  e. 0.40 mT


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moormoney

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

line absorption, or dark line

Answer to Question 2

b


bobthebuilder

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Reply 2 on: Jul 28, 2018
Gracias!

dantucker

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Reply 3 on: Yesterday
Wow, this really help

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