Asearchlight rotates at a rate of 3 revolutions per minute. the beam hits a wall located 15 miles away and produces a dot of light that moves horizontally along the wall. how fast (in miles per hour) is this dot moving when the angle theta between the beam and the line through the searchlight perpendicular to the wall is pi/4? note that dtheta/dt3(2pi)=6pi.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

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

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.