Why is it that when the moon is farthest away from the sun, its the brightest? shouldn't it be the darkest if the earth's shadow blocks out the moon most of the time?

What happens to the light rays when they hit the specimen?

Why do electron microscopes have higher resolving power than light microscopes?

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?