seven seconds after a brilliant flash of lightening thunder

seven seconds after a brilliant flash of lightening, thunder shakes the house. approximately how far was the lightening strike from the house?

Time t= 7 sec

House will be shaken due to the sound of thunder

Speed of sound v = 343 m/s

distance can be calculate using this formula

distance = speed * time

d = v*t

d = (343 m/s) ( 7 s)

d = 2401 m