A student makes a transverse wave by shaking a rope tied to a doorknob up and down. Which statement accurately describes the wave in the rope ?

a-Each part of the rope moves in the same direction as the wave.
b-Each part of the rope moves up and down as the wave moves toward the door.
c-Each part of the rope moves up and down as the wave moves around in circles.

d-Each part of the rope moves up and down as the entire wave moves up and down.

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?