depends on several factors. the speed of sound is 343 meters per second (1,125 feet/s). This equates to 1,236 kilometers per hour (768 mph), or about one kilometre in three seconds and about one mile in five seconds.
1100 feet Update: You're just about right. Technically, though, it's a little over: 761 miles = 4018080 feet 1 hour = 3600 seconds ~1116 constitutes supersonic flight at sea level
6x 10^10
One knot equates to about 1.687 feet per second.
1 Mile per Hour = 1.46666666666667 Feet per Second80 Miles per Hour = 117.33333333333333 Feet per second
340.29 meters per second at sea level.
1,100 feet per second = 66,000 feet per minute
2191.21 meters per second.
At the temperature of 20 degrees Celsius the sound travels 343 meters in one second or 1125.328 feet in one second. That is 20580 meters in one minute or 67523 feet in one minute.
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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/h
At sea level, sound does roughly 0.21 mile per second. (4.7 seconds for 1 whole mile)
146.6 feet per second.
About 41 feet per second.
About 4.55 feet per second.
If a car is moving at 100 feet per second, then it is traveling at 100 feet per second.
1100 feet Update: You're just about right. Technically, though, it's a little over: 761 miles = 4018080 feet 1 hour = 3600 seconds ~1116 constitutes supersonic flight at sea level