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Author Question: The cooling effect in a refrigerator is produced by _____. a. the electric motor which essentially ... (Read 66 times)

lb_gilbert

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on: Jul 28, 2018
The cooling effect in a refrigerator is produced by _____.
 a. the electric motor which essentially converts electricity into heat
  b. compression of the refrigeration gas into a liquid
  c. liquefying the refrigeration gas
  d. vaporization of the refrigeration liquid
  e. proper insulation

Question 2

A satellite is in a circular orbit 600 km above the Earth's surface. The acceleration of gravity is 8.21 m/s2 at this altitude. The radius of the Earth is 6 400 km. Determine the speed of the satellite, and the time to complete one orbit around the Earth.


sierramartinez

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

d

Answer to Question 2

7 580 m/s, 5 800 s


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lb_gilbert

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Reply #2 on: Jul 28, 2018
TY


sierramartinez

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Reply #3 on: Jul 28, 2018
You're welcome


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