A crate with a mass of 50 kg sits at rest on a inclined plane at a 30 degree angle. Calculate: a) the
normal force, b) the force of friction, c) the coefficient of friction, and d)
the weight (in newtons) of the box

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter