Where is the ((north)) pole of the bar magnet, based on the magnetic field lines shown? A. On the left end
B. On the bottom edge
c. On the top edge
D. On the right end

What organization and environment is described above?

Debris produced by mining is called

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.