Author Question: A laser beam strikes a plane mirror's reflecting surface with an angle of incidence of 43. What is ... (Read 104 times)

RRMR · **on:** Jul 29, 2018

A laser beam strikes a plane mirror's reflecting surface with an angle of incidence of 43. What is the angle between the incident ray and the reflected ray?

A) 43
B) 86
C) 45
D) 90
E) 0

Question 2

A train starts from rest and accelerates uniformly until it has traveled 2.1 km and acquired a forward velocity of The train then moves at a constant velocity of for 400 s. The train then slows down uniformly at until it is brought to a halt.

The distance traveled by the train while slowing down is closest to A) 4.4 km.
B) 4.2 km.
C) 4.0 km.
D) 3.8 km.
E) 3.6 km.