Aball is thrown straight up. at what point does the ball have the most energy? ignore air resistance.
at the highest point of its path.
just before it hits the ground.
when it is first thrown.
when the ball is halfway to the highest point of its path.
everywhere; the energy of the ball is the same at all of these points.

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Need only answer if you think you know it

Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)