The surface charge density on an infinite charged plane is - 1.70 x 10^-6c/m^2 . a proton is shot straight away from the plane at 2.20 x 10^6m/s .
how far does the proton travel before reaching it's turning point?

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy