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Author Question: A copper wire of length 10 cm is in a magnetic field of 0.30 T. If it has a mass of 20 g, what ... (Read 129 times)

asan beg

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on: Jul 28, 2018
A copper wire of length 10 cm is in a magnetic field of 0.30 T. If it has a mass of 20 g, what minimum current through the wire would cause a magnetic force equal to its weight?
 a. 4.9 A
  c. 2.0 A
  b. 6.5 A
  d. 1.3 A

Question 2

Water is sent from a fire hose at 40 m/s at an angle of 30 above the horizontal. What is the maximum height reached by the water?
 a. 7.5 m
  c. 15 m
  b. 11 m
  d. 20 m


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SAUXC

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

B

Answer to Question 2

D


asan beg

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Reply #2 on: Jul 28, 2018
Thanks


SAUXC

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Reply #3 on: Jul 28, 2018
Welcome :)


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