Q1 a proton is moving at 200times105 ms and begins to, Ask an Expert

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Q1. A proton is moving at 2.00×105 m/s and begins to circle at a radius of 5.00e-3 m. What is the strength of the perpendicular magnetic field acting on the proton?

Q2. A hair dryer draws a current of 8.3 A.

(a) How much charge passes through the hair dryer in 3.5 min?

(b) How many electrons does this represent?

Q2. Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km in 12 seconds starting from rest.

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Category:- Physics
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