Select the correct answer. Which type of current is produced by a wire breaking magnetic field lines and changing the polarity?
O A. alternating
OB.
direct
O c.
straight
OD.
alternating and direct
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An automobile of mass 2000 kg moving at 30 m/s is braked suddenly with a constant braking force of 10000 n. how far does the car travel before stopping?

An uplifted block of rock between two normal faults

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]