In an experiment designed to measure the speed of light, a laser is aimed at a mirror that is 47.0 km due north. A detector is placed 119 m due east of the laser. The mirror is to be aligned so that light from the laser reflects into the detector.(a) When properly aligned, what angle should the normal to the surface of the mirror make with due south?

The incidence angle is 0.145°.

Explanation:

Given that,

Distance due to east = 119 m

Distance due to north= 47.0 km

We need to calculate the incidence angle

Using formula of incidence angle

Where, y = distance due to north

x = distance due to east

Put the value into the formula

Hence, The incidence angle is 0.145°.

positive reinforcement? ?

grav forces affect all objects magnetic forces affect magnetic objects and electric currents