If the frequencies of two component waves are 24 hz and 20 hz, they should produce beats per second.

a. 2
b. 8
c. 4
d. 12

Ways that industry and agriculture use physical properties to separate substances

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

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.