An explosion occurs at the end of a pier. The sound takes seperate paths through three media to reach the end of the pier: air, fresh water, and a slender metal handrail.
Take vair = 337 m/s, vfresh water = 1410 m/s, and vmetal = 5200 m/s.
If the sound travels a distance of 283 m through each medium
(a) after the first sound arrives, how much later does the second sound arrive?
Number: __________ Units: __________
(b) after the first sound arrives, how much later does the third sound arrive?
Number: __________ Units: __________