Answer:
The speed of the airplane is approximately 770 km/h (214 m/s).
Explanation:
Speed = 
Distance = 3080 km
Time = 4 hours
speed = 
= 770
speed = 770 km/h
The speed of the airplane is 770 km/h.
OR
Distance = 3080 km
But,
1 000 m = 1 km
3080 km = 3080000 m
distance = 3080000 m
Time = 4 hours
60 seconds = 1 minute
60 minutes = 1 hour
Thus, 4 hours = 60 x 60 x 4
= 14400 seconds
Therefore,
speed = 
= 213.8889
speed ≅ 214 m/s
The speed of the airplane is approximately 214 m/s.
Answer:
The earliest known life-forms are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 Gya (billion years ago), relatively soon after the oceans formed 4.41 Gya, and not long after the formation of the Earth 4.54 Gya
Explanation:
Answer: C: He believed he had been cheated out of the presidency and a position in John Quincy Adam’s administration.
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Answer:
The Anti-Federalists opposed the ratification of the 1787 U.S. Constitution because they feared that the new national government would be too powerful and thus threaten individual liberties, given the absence of a bill of rights. ...
Explanation:
Answer:
Blacks constructed their own institutional life, by creating schools and churches. Blacks faced widespread discrimination and were unable to find work as craftsmen or store clerks.
Explanation:
