a shock wave first forms when an object the speed of sound. reaches exceeds approaches
a shock wave first forms when an object the speed of sound. reaches exceeds approaches
Answer
Brief Explanations:
A shock - wave first forms when an object exceeds the speed of sound. When an object moves at or below the speed of sound, the sound waves can move ahead of it. But when it exceeds the speed of sound, the sound waves pile up and form a shock - wave.
Answer:
exceeds