Every aircraft has a different height, and there are so many it is impossible to say an average speed. Most airliners cruise around 580-640 mph.
When it's at its maximum height its speed will be zero.
No.
No, the average speed will always be between the minimum and maximum speeds.
i have no clue
740 mph
That is it's maximum speed. Different for every aircraft.
the average height is 15 ft. tall, and the average speed is about 32 mph.
The average speed if an airplane travels 1364 miles in 5.5 hours is 248 miles/hr.
The maximum speed of a DC-10 is 610mph
137knots as an average
150 knots
500 miles per hour