Hen a thin copper wire that is 178 m long is connected between a 1.2-v potential difference, a current of 2.0 amps flows through the wire. what is the diameter of this wire? the resistivity of copper is 1.72 × 10-8 ω • m.

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2

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.