You are conducting an experiment in which a metal bar of length 7.00 cm and mass...
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You are conducting an experiment in which a metal bar of length 7.00 cm and mass 0.300 kg slides without friction on two parallel metal rails (Figure 1). A resistor with resistance R = 0.600 2 is connected across one end of the rails so that the bar, rails, and resistor form a complete conducting path. The resistances of the rails and of the bar are much less than R and can be ignored. The entire apparatus is in a uniform magnetic field B that is directed into the plane of the figure. You give the bar an initial velocity v = 20.0 cm/s to the right and then release it, so that the only force on the bar then is the force exerted by the magnetic field. Using high-speed photography, you measure the magnitude of the acceleration of the bar as a function of its speed. Your results are given in the table: Figure v (cm/s) 20.0 16.0 14.0 12.0 10.0 8.0 a (cm/s²) 6.2 4.9 4.3 3.7 3.1 2.5 B a XR be X X 6.00 cm ↓ 1 of 1 Su No elements selected Request Answer Complete previous part(s) Complete previous part(s) Complete previous part(s) a (cm/s²) Complete previous part(s) 6 4 3 8 O 10 12 14 Select the elements from the list and add them to the canvas setting the appropriate attributes. Press CTRL+M to g the main menu. 16 18 20 v (cm/s) You are conducting an experiment in which a metal bar of length 7.00 cm and mass 0.300 kg slides without friction on two parallel metal rails (Figure 1). A resistor with resistance R = 0.600 2 is connected across one end of the rails so that the bar, rails, and resistor form a complete conducting path. The resistances of the rails and of the bar are much less than R and can be ignored. The entire apparatus is in a uniform magnetic field B that is directed into the plane of the figure. You give the bar an initial velocity v = 20.0 cm/s to the right and then release it, so that the only force on the bar then is the force exerted by the magnetic field. Using high-speed photography, you measure the magnitude of the acceleration of the bar as a function of its speed. Your results are given in the table: Figure v (cm/s) 20.0 16.0 14.0 12.0 10.0 8.0 a (cm/s²) 6.2 4.9 4.3 3.7 3.1 2.5 B a XR be X X 6.00 cm ↓ 1 of 1 Su No elements selected Request Answer Complete previous part(s) Complete previous part(s) Complete previous part(s) a (cm/s²) Complete previous part(s) 6 4 3 8 O 10 12 14 Select the elements from the list and add them to the canvas setting the appropriate attributes. Press CTRL+M to g the main menu. 16 18 20 v (cm/s)
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