Lightning distance from thunder delay and temperature

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Homework Statement


1. A flash of lightning is seen followed by the sound of the thunder 7.0 s later. If the temperature outside is 15 °C, how far away was the lightning strike?


Homework Equations


V(sound)= 331m/s+(0.59)(T)
D=V(T)


The Attempt at a Solution


V(sound)=331+(0.59)(15)
V(sound)= 339.85

d=VT
d= (339.85)(7)
=2378.95
Therefore the lightning struck 2378.95m away
 

Discussion

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Well done - treating the speed of light as infinite is probably good enough here.
You may want to watch the sig figs though - all measurements are quoted to 2 sig figs. but your answer has six.
 
Simon Bridge said:
Well done - treating the speed of light as infinite is probably good enough here.
You may want to watch the sig figs though - all measurements are quoted to 2 sig figs. but your answer has six.

Ok thank you, if I were to put this in significant digits what would the answer be? I am not really familiar with sig digs :/