If the angle of incidence of a ray of light is 50 degrees, what would the angle of reflection be?

Bii). If the angle of incidence of a ray of light is 45 degrees, what would the angle of reflection?​

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant