The sound of thunder travels away from a lightning flash at m/s. Joe sees a lightning flash, and then hears the thunder seconds later. To the nearest tenth of a kilometre, how far away is Joe from the lightning flash?
(A) (B) (C) (D) (E)
The sound of thunder travels away from a lightning flash at m/s. Joe sees a lightning flash, and then hears the thunder seconds later. To the nearest tenth of a kilometre, how far away is Joe from the lightning flash?
(A) (B) (C) (D) (E)