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# It's often claimed that for every second of delay between seeing a flash of lightning and hearing the thunder, it means the strike was $1 / 5$ mile away. Is th...

## Question

###### It's often claimed that for every second of delay between seeing a flash of lightning and hearing the thunder, it means the strike was $1 / 5$ mile away. Is that reasonable? How far does sound travel in $5.00 \mathrm{~s}$ at an air temperature of $20.0^{\circ} \mathrm{C}$ ?

It's often claimed that for every second of delay between seeing a flash of lightning and hearing the thunder, it means the strike was $1 / 5$ mile away. Is that reasonable? How far does sound travel in $5.00 \mathrm{~s}$ at an air temperature of $20.0^{\circ} \mathrm{C}$ ?

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