Tinal answer w 1.
A 55.0 kg box slides down a 29.0° ramp with an acceleration of 3.49 m/s2. Find the friction
force impeding its motion. Find ik between the box and the ramp.

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?

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.