BBC NEWS Science/Nature Superfast Nasa jet pushes Mach 10(01) Prof. Nia Sauer II 02 Jul 2025 Save Image Image gallery: How Fast is Mach 10? Unveiling the Incredible Velocity of Hypersonic Flight
![[T] An airplane’s Mach number M is the ratio of its speed to the speed](https://content.bartleby.com/tbms-images/9781938168024/Chapter-1/images/html_68024-1.4-221e_image001.jpg "[T] An airplane’s Mach number M is the ratio of its speed to the speed")
