Which is the closest to the speed of sound in air?
A. 7miles per hour
B. 70miles per hour
C. 700miles per hour
D. 7000miles per hour
C?
1 answer
I would agree with C.
A. 7miles per hour
B. 70miles per hour
C. 700miles per hour
D. 7000miles per hour
C?
1 answer