A4-kg ball has a momentum of 12 kg. m/ s. what is the ball's speed?

a. 3 m/s
b. 4 m/s
c. 12 m/s
d. 48 m/s
e. none of these

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2