Why do plane mirrors and convex mirrors form only virtual images?

a) because they cannot make light rays converge
b) because they cannot make light rays converge
c) because they both show a wide angle of view
d) because they only reflect light

An object is moving east, and it’s velocity changes from 65m/s to 25m/s in 10 seconds. which describes the acceleration?

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?