When light rays strike an object in front of a plane mirror, they are reflected off the object in which direction?

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value