You see a stunt man climb up 20 meters at a circus into a cannon. He gets fired out horizontally and he lands 150m away. How long was he in the air for?

Avalue that describes how heavy an object is and is related to the force of gravity is

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon