what is the speed if mach 3?
921375
It depends on the altitude (more accurately, the temperature). It is only 2284 mph at sea level (assuming standard temperature). At 60,000 ft, Mach 3 is about 1981 mph. \n\nSo a rough estimate of Mach 3 is over 2,000 miles per hour!
79635
Depends on what track. On a closed circuit at La Mans the top speed was 405 kph or 250 mph.
829236
First of all, 3 x 10^8 m/s is the speed of light in a vacuum. Thanks for nothing there.\n\nNow, for the speed of sound ...\n\nThe typically cited value is about 340 m/s in standard atmosphere, but the actual speed of sound varies with the medium. \n\nFor an ideal gas, the speed of sound is defined as follows:\n\na = SQRT(gamma*R*T), where gamma is the ratio of the heat capacities of the gas, R is the universal gas constant, and T is the absolute gas temperature. Similar correlations exist for the speed of sound in solids and liquids which depend on the density and thermophysical properties of the medium.
371210
3 * 10^8 m/s (approx.- this is used for the purpose of calculations)\nthe exact value is hard to calculate but the closest approximation is 299,792,458 m/s
1177206
You won't be going anywhere without a gearbox.\nBesides, horsepower has nothing to do with your ultimate top speed.  Horsepower is just a definition of work over time (Acceleration).\nRight now there is a spacecraft traveleing at over 100,000mph that has only 1/20,000th of a horsepower.\n\nIf you do happen to get the gearbox and select the best gear ratios you will probably be aerodynamically limited to about 132mph.  That is of course, if you haven't already turned in to a greasy spot.\n\nPlease ask your friends to keep us posted.\nYou may win the Darwin Award.
880642
Well I believe the mathematics w/ ratios leads it to be 21.76 RPM.  Only one way to find out for sure though, try it.
918965
Sounds like "speed" - check out the link below for more info. I hope this helps.
1178980
Fastest ------- 6.11 km/sec (13,667 mph)\nSlowest ------ 3.67 km/sec  (8,209 mph)\nAverage ------ 4.74 km/sec  (10,603 mph)
210248
Top Speed 330.0 kph / 205.1 mph \n0 - 62 mph 3.8 seconds
240249
-The plane that literally grew several inches at Mach 3  Related Links
146292
11.2 km/s with the following caveats:\n\n"Due to the atmosphere it is not useful and hardly possible to give an object near the surface of the Earth a speed of 11.2 km/s, as these speeds are too far in the hypersonic regime for most practical propulsion systems and would cause most objects to burn up due to atmospheric friction. For an actual escape orbit a spacecraft is first placed in low Earth orbit and then accelerated to the escape velocity at that altitude, which is a little less, ca. 10.9 km/s. The required extra velocity, however, is less because the spacecraft has already been accelerated to about 8 km/s."
1162410
Relative speed to one another = 4 + 5 mph = 9mph\n\nLake = 3miles so they will meet at\n\n3/9 hours = 1/3 hour or 20 minutes.
864791
A.) 3.02891 seconds\nB.) 290.1 m/s\n\nTrust me... =)
214186
Maximum speed: Mach 2.05 at altitude, 1,321 mph (2,100 km/h)
982868
About mach 25.\nIt goes around 18,000 mph,  Mach 1 is about 700 mph
677621
It's 220mph, near enough, so you're looking at perhaps a bullet, or a jet. It might be worth dropping it to 49 m/s (110mph) or even 24.5 m/s (55mph) to bring it within the range of a sports car or ordinary motor.
1011755
SPEED.\n\nF.M. IS LITTLE FASTER THAN M.F.