The poles of the earth's magnetic field line up with the geographic poles of the earth.
true
false

Select the correct answer. what does the process of natural selection involve?

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.

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (