Approximate speed of the shuttle at the beginning of reentry Mach 25 Approximate speed of the shuttle when it began to break up Mach 18 Approximate speed of a 0.30 cal bullet from a big game rifle 3000 ft's Typical reentry speed for an ICBM 1800 mi/hr Mach 1 = Speed of sound (at 20C) 343 m/s **Thus the term "Mach means how many times the speed of sound. Mach 2 is twice the speed of sound. etc. Speed of Light = Warp 1 3.0x 10 8 m/s Use the information above to answer these questions. You MUST SHOW YOUR WORK to get full credit for your answers. Question: The shuttle was traveling at approximately _______ when it broke up