A ball rolls from x = -5 m to x = 0 m in 1 second. What was its average
velocity?
(Units = m/s)
Don't forget: velocities and displacements to
the right are +, to the left are -.
Enter

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.

None. nothing. zero. zilch.

C. the electric current passes from the slip rings, through the brushes, and to the collection device.