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##### Physics Help about falling rod?

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A moving rod has a resistance of 0.25 ohms and moves on rails 20.0 cm apart. The stationary U-shaped conductor has negligible resistance. When a force of 0.350 N is applied to the rod, it moves to the right at a constant speed of 1.50 m/s. What is the magnetic field? (I know how to find this part out but need help with the second part of the question which is below)

Also, take B and everything else from the previous question and find out how fast the bar is dropping if v is constant. The mass of the bar is 125 g. And the space between the rails is 20.0 cm.

a) Draw FBD

b) Find v

Oct 20th, 2017
Apr 12th, 2015

Apr 12th, 2015
12.04.2015..jpg

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Oct 20th, 2017
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Oct 20th, 2017
Oct 21st, 2017
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