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.

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?