Posted by Hannah on Saturday, February 25, 2012 at 6:01pm.
how many seconds will elapse between seeing lightning and hearing the thunder if the lightning strikes miles away and the temperature is 100.0 degrees F?

Physics  Elena, Saturday, February 25, 2012 at 6:23pm
The sound velocity depends on temperature as
v (meters per second)=20.046•sqroot(T)
where T is absolute temperature (in Kelvins),
or
v(meters per second) = 331.4+0.6•t,
where t is the temperature in degrees centigrade
100F = 37.78 degrC
v = 331.4+0.6 •37.78=354.06 m/s.
1 mile =1 609 m.
t = s/v = 1 609/354.06 =4.54 s

Physics  Hannah, Saturday, February 25, 2012 at 6:30pm
What is the actual formula you are using? I cannot tell what you mean when you say "v=331.4 +0.6t". I want to actually learn how to do it.

Physics  bobpursley, Saturday, February 25, 2012 at 7:52pm
That is the actual formula, worth memorizing. Vsound= 331.4+.6T, T in Celcius.
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