Mach number is between __________ the flow is called super-sonic flow.
A. 1 and 2.5
B. 2.5 and 4
C. 4 and 6
D. 1 and 6
Answer:A
Mach number is between __________ the flow is called super-sonic flow.
A. 1 and 2.5 B. 2.5 and 4 C. 4 and 6 D. 1 and 6