Perseverance (The Mars rover) drops a sample from 1.8 m above the surface of Mars. If the acceleration due to gravity is 3.721m/s, how long will it take for the sample to
fall and reach Mars's surface?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.