Cozette wanted to know why Ft. Lauderdale FL was so named:
Fort Lauderdale is a city (incorporated place) located in Broward County, FL on the east coast of Florida. The City got it's name from Major William Lauderdale who built the first fort at the rivers mouth in 1838 during the Seminole Indian wars. Fort Lauderdale was incorporated in 1911 with only 175 residents.
Population: 152,397 (US Census 2000).
Population: 152,397 (US Census 2000).
Cozette Asked: "How Fast does sound travel":
To break the sound barrier you have to travel than the speed of sound.
The speed of sound in air actually varies with temperature. When representing air as an ideal gas the speed of sound can be represented as
c = square root(γRT)
where
γ = specific heat ratio = 1.4
R = specific gas constant = 287
T = Temperature in Kelvin.
Using this equation the speed of sound in dry air at:
-100 degrees Celsius is 264 metres per second
0 degrees Celsius is 343 metres per second
100 degrees Celsius is 287 metres per second.
The speed of sound in air actually varies with temperature. When representing air as an ideal gas the speed of sound can be represented as
c = square root(γRT)
where
γ = specific heat ratio = 1.4
R = specific gas constant = 287
T = Temperature in Kelvin.
Using this equation the speed of sound in dry air at:
-100 degrees Celsius is 264 metres per second
0 degrees Celsius is 343 metres per second
100 degrees Celsius is 287 metres per second.
Read more: http://wiki.answers.com/Q/What_rate_of_speed_is_necessary_to_break_the_sound_barrier#ixzz1K6YyDQzF
SO... In Conclusion: 287 metres per second is about 642.000716 miles per hour
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