5. As indicated by the arrow, what will the Sun become at the end of its life cycle? sc.8.E.5.3
A. black hole
B. planetary nebula
C. supernova
D. white dwarf

An uplifted block of rock between two normal faults

An object's buoyant force and weight mean the same thing.a. trueb. false

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.