A sledder is moving to the top right across unpacked snow and skidding to a stop of the forces listed identify witch acts upon the sledder

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?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Aparticle moves in a circle 1.50 m in radius . through what angle in radians does it rotate if it moves through an arc length of 2.50m? what is the angle in degrees?