Which of newton's three laws does the following statement satisfy?
for every action there is an equal and opposite reaction.
a
newton’s first law
b
newton’s second law
c
newton’s third law

How is the gravitational force related to the distance between two objects?

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?

How do you know how many valence electrons an atom has?