Problem 5: A rod of m = 0.95 kg rests on two parallel rails that are L = 0.35 m apart. The rod carries a current going between the rails (bottom to top in the figure, into the page) with a magnitude I = 3.8 A. A uniform magnetic field of magnitude B = 0.55 T pointing upward is applied to the region, as shown in the figure. The rod moves a distance d = 0.75 m along the rails in a given time period. Ignore the friction on the rails. it 100

College Physics
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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I need D through G here.

Problem 5: A rod of m = 0.95 kg rests on two parallel rails that are L = 0.35 m apart. The
rod carries a current going between the rails (bottom to top in the figure, into the page) with a
magnitude I = 3.8 A. A uniform magnetic field of magnitude B = 0.55 T pointing upward is applied
to the region, as shown in the figure. The rod moves a distance d = 0.75 m along the rails in a given
time period. Ignore the friction on the rails.
17
L
I
Part (a) Express the magnitude of the magnetic force F on the rod, in terms of the length L, current I, and magnetic field B.
F = |
7
8.
9.
НОME
В
d
↑^ ^L 4
5 6
F
1
2 3
I
j
L
+
END
VO BАСKSPАСЕ
CLEAR
DEL
Submit
Hint
Feedback
I give up!
Part (b) Calculate the numerical value of F, in newtons.
Part (c) Which direction does the rod move?
Part (d) Determine the work done on the rod during its motion, in terms of the magnetic force F and the distance traveled d.
Part (e) Calculate the work done on the rod, in joules.
Part (f) Express the final speed of the rod, v, in terms of F, d, and m, if it started from rest.
Part (g) Calculate the numerical value of v,
in meters per second.
Transcribed Image Text:Problem 5: A rod of m = 0.95 kg rests on two parallel rails that are L = 0.35 m apart. The rod carries a current going between the rails (bottom to top in the figure, into the page) with a magnitude I = 3.8 A. A uniform magnetic field of magnitude B = 0.55 T pointing upward is applied to the region, as shown in the figure. The rod moves a distance d = 0.75 m along the rails in a given time period. Ignore the friction on the rails. 17 L I Part (a) Express the magnitude of the magnetic force F on the rod, in terms of the length L, current I, and magnetic field B. F = | 7 8. 9. НОME В d ↑^ ^L 4 5 6 F 1 2 3 I j L + END VO BАСKSPАСЕ CLEAR DEL Submit Hint Feedback I give up! Part (b) Calculate the numerical value of F, in newtons. Part (c) Which direction does the rod move? Part (d) Determine the work done on the rod during its motion, in terms of the magnetic force F and the distance traveled d. Part (e) Calculate the work done on the rod, in joules. Part (f) Express the final speed of the rod, v, in terms of F, d, and m, if it started from rest. Part (g) Calculate the numerical value of v, in meters per second.
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