What is the displacement of a jogger that went 30 m to the east and 40 m to the north? a
2500 m NW
b
2500 m NE
C
50 m NW
d
50 m NE

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.