An airplane is material constructed into a flying machine that travels.
what is the material through which light travels
When the President of the United States of America travels by airplane, that airplane is referred to as Air Force One.
The average speed if an airplane travels 1364 miles in 5.5 hours is 248 miles/hr.
The velocity of an airplane that travels 500 km in 2 hours and 17 minutes is 218.97 km per hr.
measured in miles
Known as material medium
The material through which a wave travels is called the medium.
Light travels slower in a material with greater optical density.
191.05882 mph
welp
It is called a 'supersonic' plane
Sonic boom