A shock wave is
A) the opposite of a bow wave.
B) usually composed of a pair of closely spaced cones.
C) weak for aircraft that fly at less than the speed of sound.
D) all of the above
E) none of the above
Question 2
As a supersonic aircraft increases in speed, the angle of its V-shaped shock wave becomes
A) wider.
B) narrower.
C) both of these
D) neither of these