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Author Question: A 6.0-mF capacitor is attached to a 20-V power supply. How much energy is stored in the capacitor? ... (Read 401 times)

Mr.Thesaxman

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on: Jul 28, 2018
A 6.0-mF capacitor is attached to a 20-V power supply. How much energy is stored in the capacitor?
 a. 2.0  10-3 J
  c. 2.0  10-4 J
  b. 5.2  10-4 J
  d. 1.2  10-3 J

Question 2

A 4.0-kg mass is placed at (3.0, 4.0) m, and a 7.0 kg-mass is placed at (3.0, -4.0) m. What is the moment of inertia of this system of masses about the z axis?
 a. 275 kgm2
  c. 250 kgm2
  b. 90 kgm2
  d. 180 kgm2


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tofugiraffe

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

D

Answer to Question 2

A


Mr.Thesaxman

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

patma1981

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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