HELP HELP HELP HELP HELP HELP HELP HELP
IM SO SAD ANF SUCH A FAILLURE​

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

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?