An explosion takes place at the end of a pier. The sound reaches the other end of the pier through traveling via three media: air, fresh water and a slender handrail of solid steel. The speeds of sound in air, water and the handrail are 343, 1482, and 5040 m/s, correspondingly. The sound travels a distance of 110 m in each medium.
Following the first sound arrives; determine how much later do the second and third sounds arrive? (In seconds) Water is second and Air is third.