The light we see coming from the moon is

light from the sun.

reflected

refracted

polarized

diffracted

A woman stands in a boat at rest on a calm lake. She throws a 10 kg anchor off the front of the boat, which has a mass of 1,000 kg. What is the initial momentum of the anchor-boat system? A) 1,000 kg m/s B) zero because both objects are at rest.

How to use allele In a sentence

A wave has a wave length of 20mm and a frequency of 5 hertz. What is the speed?

Which one of the following environments will sound not travel through? A. Solid B. Gas C. Liquid D. Vacuum

An athlete practicing for a track meet ran 400 meter in 50 seconds. What was his average speed?

Which measurement can be constant (unchanging) ? A. only speed B. only velocity C. both speed and velocity

Calculate the period of a wave whose frequency is 5 Hertz and whose wavelength is one centimeter give your answer in a decimal form

Read the following paragraph from the section "No Time To Get To Safety." Many of the victims did not have enough time to climb on top of their roofs, or run to higher ground.

What do we mean when we say the universe is expanding, and how does expansion lead to the idea of the big bang and our current estimate of the age of the universe?

What is the gravity on the moon