what is the speed of sound?
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.
590711
The speed of sound v in dry air at temperature T (in celsius) is given by:\n\nv = (331.4 + 0.6 T) m/s\n\nSpeed of sound depends on various factors, such as, temperature, humidity, density, etc. of the medium in which it travels.\n\nThe following links provide the speed of sound calculators and related links:
438410
Mach is the speed of sound. So Mach 3 is three times the speed of sound.
148
In a sense, any microphone is picking up sounds from the past, due to the speed of sound. This is similar to what you mentioned with radio telescopes.\n\nThe main differences are 1) velocity -- light moves at about 1 foot per nanosecond while sound moves around 1 foot per 1/1000 second, and 2) that sound moving though a medium diffuses quite rapidly. Something really loud, like thunder, you might hear from 20-30 seconds away. For normal, everyday sounds, the delay won't be more than maybe a few tenths of a second.
474712
At normal atmospheric pressure, the temperature dependence of the speed of a sound wave through air is approximated by the following equation:\n\nv = 331 m/s + (0.6 m/s/C)*T\nwhere T is the temperature of the air in degrees Celsius. Using this equation is used to determine the speed of a sound wave in air at a temperature of 20 degrees Celsius yields the following solution.\n\nv = 331 m/s + (0.6 m/s/C)*T \nv = 331 m/s + (0.6 m/s/C)*20 C\n\nv = 331 m/s + 12 m/s\n\nv = 343 m
753670
The speed of light varies depending on the medium the light is traveling through.  In a vacuum however, which is the fastest medium in which light can travel, the speed of light is 299,792,458 m/s.
82335
Sound travels at approximately 720 miles per hour. Light travels at 186,000 miles per second.
736786
because LIGHT travels faster than SOUND!!!\n\nSpeed of light:  186,282.397 miles per second\n\nSpeed of sound:  1238 km/h or 770 mph
149054
In air, higher temperatures result in faster sound waves.  The formula is \n\nV = Vo SQRT( 1 + T/273) , where V = speed of sound in the air, T = temperature in degrees Celsius, and Vo= speed of sound at 0 degrees Celsius = 331 m/s.
226081
Assuming the speed of sound in air to be 334 m/sec., and using the formula,\n\nwavelength = speed/frequency,\n\nThe longest wavelength for a human with average hearing capacity (20 Hz to 20,000 Hz) = 334/20=16.7 metres.\n\nThe shortest wavelength would be 334/20000=0.167 metres=16.7 cm\n\nThus, the wavelength limits (as per the average human audibility range) are from about 17 cm to 16.7 metres.
248389
The speed of sound increase at a rate of 0.6-m/s per degree C starting at 0 degrees C with a speed of 330-m/s.  At 30 degrees C the speed of sound will be 330-m/s + (0.6-m/s*30)=348=m/s
104650
Let f1 = 35.0 kHz\nvbat = 12 m/s\nvsound = 330 m/s\n\na) f2  = vsound*f1/(vsound-vbat) = 330*35/(330-12) = 36.32kHz\n\nb) For bat f = (vsound+vbat)*f2/vsound = 342*36.32/330 = 37.64kHz\n\nc) It will obviously affect the answers
302444
sound-330m/s in air medium\nlight-299,297km/s
758612
Sound waves are longitudinal waves. They vibrate back and forth in the direction that they aremoving. Sound travels at about 1100 feet /sec.\n\nLight waves are transverse waves, part of the electromagnetic spectrum. they vibrate up and down similar to water waves. They travel at 186,000 miles/sec.
663538
The speed of light and other EM waves (in a vacuum) is:\n299,792,458 meters per second\n\nThe speed of sound (at sea level) is:\n340.29 meters per second\n\nThe ratio is 880,991 times faster.\nThe difference is 299,792,118 m/s faster.\n\nOr the simple answer is about a million times faster.\nThe even simpler answer is *lots* faster!\n\nThis also explains why you see far away lightning long before you hear the thunder clap (except in the movies).
1217
The speed of sound in air depends on a number of factors - air temperature and pressure.  Generally the higher the altitude the lower the speed of sound.\n\nIn air, sound waves travel at around 330 metres/second (when the air temperature is 0 degrees centigrade). At 40 degrees centigrade (a very very hot day) the velocity increases to 354 metres/second in air.\n\nThe average figure for speed of sound at standard temperature and pressure is quoted as 343 metres per second or 767 miles per hour.
864791
A.) 3.02891 seconds\nB.) 290.1 m/s\n\nTrust me... =)