The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.40 2, and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let = 1.20 m. R> x x ✔ x x x x v x x x x x x x x x x x |x x x x x F. Fapp Ⓡ (a) Calculate the applied force required to move the bar to the right at a constant speed of 2.50 m/s. N (to the right)

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Chapter1: Units, Trigonometry. And Vectors
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The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.40 , and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let l = 1.20 m.
R
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X x XX
x
*
x
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F
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i
(a) Calculate the applied force required to move the bar to the right at a constant speed of 2.50 m/s.
N (to the right)
(b) At what rate is energy delivered to the resistor?
W
Transcribed Image Text:The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.40 , and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let l = 1.20 m. R x X x xx x → x xx x x x x Bin x x x x xx X xxx X x XX x * x x X X x X X X x x X F app i (a) Calculate the applied force required to move the bar to the right at a constant speed of 2.50 m/s. N (to the right) (b) At what rate is energy delivered to the resistor? W
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