Plzz(god will blesss ya)
if all the light waves are absorbed by an object then the object will appear
a)black
b)brown
c)gray
d)white

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .