The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 hz. note that the speed of light is 2.998 x 108 m/s. which waves are found in this region?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal.a.added more engine powerb.activated a connection to the pedalc.stalled the engined.released a connection to the pedal

Which example is a mechanical wave?     a.microwave    b.radio wave    c.water wave    d.ultraviolet light