What is the primary voltage needed for an aircraft radio?

Utilizing the 25 kHz channel spacing on VHF Com Radio, how many channels are available?

Many aircraft in addition to the VHF radio add an audio panel.  What is the function of the audio panel?

An automatic system that reports viaVHF radio to an airline company when its aircraft takeoff and arrive, and carries messages about companyoperations is called:

According to the You Tube video on Quakers, what practice(s) sometimes made them the target of religious persecution:

By the 1760s, which of the following selections was the only Southern university:

Members of the Quaker church influenced the founding of which two British colonies: 

Compare the Colonies: Pick “N” for the Northern colonies, Pick “S” for Southern colonies, or pick “B” for both regions:  Due to lack of cash crops, this region eventually turned to manufacturing, trade, and ship building…

As the population of Massachusetts increased, ____________________________ led a congregation of Puritans into the wilderness and established a new settlement at ________________________________: 

According to the video on Roanoke Colony, theories behind the disappearance of the Roanoke Colony including all of the following EXCEPT for: