15) A metal bar with lengthL = 0.60 m ,mass m = 100 gram, and resistance R= 15 0 is placed on frictionl ess metal rails that are inclined at an angle Ø = 70° above the horizontal. The rails have negligible resistance. A uniform %3D %3D 1.60 T is directed upward as shown in Figure. magnetic field of magnitude B The bar is released from rest and slides down the rails. After the terminal speed (constant speed) has been reached, at what rate is electrical energy being converted to thermal energy in the resistance of the bar? (g = 10 m/s2). %3D A) 26.01 W B) 72.70 W C) 32.55 W D) 122.86 W E) 127.55 W
15) A metal bar with lengthL = 0.60 m ,mass m = 100 gram, and resistance R= 15 0 is placed on frictionl ess metal rails that are inclined at an angle Ø = 70° above the horizontal. The rails have negligible resistance. A uniform %3D %3D 1.60 T is directed upward as shown in Figure. magnetic field of magnitude B The bar is released from rest and slides down the rails. After the terminal speed (constant speed) has been reached, at what rate is electrical energy being converted to thermal energy in the resistance of the bar? (g = 10 m/s2). %3D A) 26.01 W B) 72.70 W C) 32.55 W D) 122.86 W E) 127.55 W
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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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Transcribed Image Text:15)
A metal bar with lengthL = 0.60 m ,mass m = 100 gram, and resistance
R= 15 0 is placed on frictionl ess metal rails that are inclined at an angle
Ø = 70° above the horizontal. The rails have negligible resistance. A uniform
%3D
1.60 T is directed upward as shown in Figure.
magneti c field of magnitude B
The bar is released from rest and slides down the rails. After the terminal speed
(constant speed) has been reached, at what rate is electrical energy being
converted to thermal energy in the resi stan ce of the bar? (g = 10 m/s2).
%3D
A) 26.01 W B) 72.70 W
C) 32.55 W D) 122.86 W E) 127.55 W
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