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Author Question: A material is a good conductor because it A) has numerous free electrons. B) has ... (Read 99 times)

drink

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  • Posts: 554
on: Jul 29, 2018
A material is a good conductor because it
 
  A)
 
  has numerous free electrons.
  B)
 
  has unattached protons.
  C)
 
  is not an insulator.
  D)
 
  is an insulator.
  E)
 
  is a metal.

Question 2

A 60-W bulb is operating at an efficiency of 6.20. What is the number of photons per second given off by the bulb assuming the wavelength of light to be 580 nm?
 
  A)
 
  5.42  1018 photons/s
  B)
 
  10.8  1018 photons/s
  C)
 
  16.2  1018 photons/s
  D)
 
  21.7  1018 photons/s
  E)
 
  25.3  1018 photons/s


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ky860224

  • Sr. Member
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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

B


drink

  • Member
  • Posts: 554
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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