A hall of mirrors in an amusement park seems to produce an infinite number of images when you look into it. This effect is also commonly seen in elevators that have two plane mirrors on opposite walls. (a) Suggest a reason why elevator designers use this effect.

Me to solve all the questions on the sheet attached

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

Does anyone have the answers to online physics course plato course physics, semester a v3.0