Sound travels via particle-to-particle vibrations around a mean position; this means that the more particles there are, the better the sound travels. Therefore, sound travels faster through iron than through water or air. Sound travels through iron roughly 15 times faster than through air. The more dense the solid, the better the sound transfer. Sound will travel the fastest in solids since the molecules are more tightly packed together, allowing sound to travel through the medium faster. Then comes liquids, then gases. Sound travels fastest on earth because there is no sound in space! since there's no medium in space for sound to travel through.
Femtosecond= 10^-15 secondDistance= Speed x time(10^(-15)) x the speed of light = 2.99792458 × 10-7 m / sOr about 300 nanometers.
The speed of sound in a medium depends on the properties of the medium. Generally, sound travels faster in denser mediums, so sound at 30 c would travel faster than sound at 15 c. But without knowing the specific properties of the mediums, it is not possible to determine the exact speed difference.
it is 15 times faster in iron (5,120 miles a second) than in air at 20 degrees celsius
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You would travel 820.21 feet.
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There are 3600 seconds in one hour. Therefore, you would travel 15 x 1.4/3600 = 0.00583 recurring (that is, 0.00583333..) miles (that is, 9.38784 metres) in 1.4 seconds.
Speed of light 3.0*10^8 m/s times 5 seconds = 15*10^8m
15 SECONDS
40.9 mph
12 to 15 seconds
15 feet ÷ 3.5 ft/s = 4.29 s.
Its average speed was 1/2 of (30 + 0) = 15 meters per second.Distance = (average speed) x (time) = 15 x 7.2 = 108 meters .
5 miles
In the city, 10-15 seconds is about one block. On the highway, 10-15 seconds is about a quarter of a mile.
About 9 seconds.