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Author Question: Motor 1 does 30 J of work in 10 s, motor 2 does 2 J of work in 5 s, motor 3 does 7 J of work in 2 s, ... (Read 92 times)

crazycityslicker

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on: Jul 28, 2018
Motor 1 does 30 J of work in 10 s, motor 2 does 2 J of work in 5 s, motor 3 does 7 J of work in 2 s, and motor 4 does 7 J of work in 3 s. List the motors in order of highest power produced to lowest power produced.
 a. 2, 4, 1, 3
  c. 1, 3, 4, 2
  b. 3, 4, 1, 2
  d. 3, 1, 4, 2

Question 2

Two electrons are separated by one cm. What is the ratio of the electric force to the gravitational force between them? (me = 9.11  10-31 kg, ke = 8.99  109 Nm2/C2, G = 6.67  10-11 Nm2/kg2, and e = 1.6  10-19 C)
 a. 1.3  1020
  c. 2.3  102
  b. 4.2  1042
  d. 3.1  1022


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joshbk44

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

D

Answer to Question 2

B


crazycityslicker

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

kthug

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Reply 3 on: Yesterday
Excellent

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