Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Science

How fast is the speed of mach one?


Mach is a term for velocity relative to the speed of sound where Mach one is the speed of sound. At sea level in air, mach 1 is 764 mph. At 10000 feet, that decreases to 664 mph. Sound travels faster in liquids ( almost 3300 mph in water) and faster still in metals (almost 11000 mph in steel.)

{{ relativeTimeResolver(1572989387322) }}

LIVE
Points points 195
Rating

Similar Questions
Sign in to view all similar questions
Science 8 Answers

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE