Speed of sound mph

Answer 1

Speed of sound in air at 20°C or 68°F is 343 m/s that equals 0.21313 mi/s. In an hour is must be 3600 times more, that is 763.632 mi/h. Cheers ebs

It should be noted that the speed of sound is dependent on the density of air. Temperature, humidity and altitude all affect what the speed of sound might be at any place on Earth. Usually for non-specific use, the sea-level measurement with a temperature of 15 °C (59 °F) is used - 1,225km/h or 761mph is used. At 20,000m(where most commercal jets fly) it is 1,062km/h or 660mph at −57 °C (−70 °F).

Unusual amounts of particlate matter(dust, dirt, sand, etc.) can also affect the speed of sound, as well as abnormal gas mixtures(such as over volcanic vents).

Answer 2

In air at 20 degrees celsius sond travels at 1,236 Kmph and 768 mph

Inorder to figure the speed at different temperatures use the following equation:

V(speed)=331+temperature (in Celsius) times .6

Answer 3

In dry air at 20 °C (68 °F), the speed of sound is 343.2 metres per second (1,126 ft/s). This is 1,236 kilometres per hour (768 mph), or about one kilometer in three seconds or approximately one mile in five seconds.

add sound travels at different velocities in different materials. The velocity is given by (R/d)(0.5) where R is the elastic constant for the material, and d is the density. It travels about 13km/sec in Beryllium (the fastest), and requires a medium for its transport. It thus will not travel in a vacuum.

Answer 4

At sea level, sound travels at .211446403 miles per second.

Answer 5

The speed of sound in air at 25 oC (77 oF) is 776.496 mi/h. The speed of sound varies with temperature and medium.

Answer 6

About 760 mph

Answer 7

0.211 miles per second.

Answer 8

768.095 mph