2. True or false. Gravity is the strongest non-contact force on Earth. A:True

B:False

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

What is the rate of change in a objects position?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.