An electron moves in a uniform magnetic field of 0.20 T, at 5.0 x 105 m/s. The magnetic force on it is a) 1.6 x 10-14 N b) 1.6 x 10-14 N [perpendicular to the velocity]
c) 1.6 x 10-14 N [perpendicular to the field] d) not enough information given

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87