The photo shows a skateboarder applying a force against one edge of a skateboard as she rides down a hill. how does this action cause the skateboarders motion to change? A. it applies an unbalanced sideways force that causes a change in direction.

B. it increases the net force pointing down the hill so she speeds up.

C. it applies a balanced sideways force that causes a change in direction.

D. it increases the force of friction so she slows down.

An electron and a proton are held on an x axis, with the electron at x = + 1.000 m and the proton at x = - 1.000 m. part a how much work is required to bring an additional electron from infinity to the origin? express your answer with the appropriate units. part b if, instead of the second electron coming in from infinity, it is initially at x = + 20.00 m on the axis and is given an initial velocity of 100.0 m/s toward the origin, does it reach the origin? part c how close to the origin does it come?