Mach 1 is about 762 mph, so mach 20 is about 15,240mph.
Mach 1 is 761.21 mph.Use this equation to convert Mach to miles per hour: mach x 761.21 = mph
Mach 1 is the speed of sound.
0.1 km is 1/10 as a fraction
mach 1 = 761.207 mph, so 761.207 * 0.791 = 602.115 mph
Mach 1 (or the speed of sound) is 1,225km per hour Mach 75 is there for 91,875 km/h
Mach 1 is 1,225.044 km/h
2'905.2 km/h 1 mach is 1'076 depending on water density =)
Mach 1 is the speed of sound, which varies by the air's pressure and temperature. Mach 1 at sea level is 340.3 m/s, 764.2 mi/h, 1,225 km/h. Hope that helped! -Jeffrey
1 004.53608 km/h or 624.189782 mi/h
mach 1 = 340.29 m / s
1100
0,72 Mach is a subsonic speed. Mach number = speed of an object/speed of sound The speed of sound in dry air at 20 0C is 1 236 km/h.
0.82 Mach speed is approximately 631 miles per hour (1,015 kilometers per hour) at sea level. Mach 1 is the speed of sound, so 0.82 Mach is 82% of the speed of sound.
Mach 3 means flying three times the faster than sound. Speed of sound at an usual temperature is 346m/s. This means Mach 3 is about 1 km/s. That is 3600kmph. That is 2250 mph.2283.59 mph
Mach 1 is the speed at which you break the sound barrier. The speed of sound, or Mach 1, at sea level and under "standard condition" is:1,116.4 ft/s340.3 m/s761.2 mph1,225.1 km/hRead more: How_fast_do_you_have_to_be_moving_to_break_the_sound_barrier
Mach 1 is the speed of sound, which is 343 meters per second, or 343 m/s. Mach 8 is 8 times faster than the speed of sound . 8 X 343 2,744 m/s or 2.74 km/s