Which example best illustrates that light behaves like particles?

a. light bends as it strikes a window.
b. light bounces off a white cement sidewalk.
c. light travels in space at a speed of about 3.0 x 108 m/s.
d. light increases in speed as it moves through matter.

Ineed the answer to question 1 , i’m desperate

Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature