Aboat sounds a fog horn on a day when both the sea water and the air temperature are 25.0° c. the speed of sound in sea water is 1,533 m/s. how much earlier (in s) does a dolphin 1000 m from the source hear the sound than a person in a boat that is also 1000 m distant? (ignore the time it takes the sound to reach the water surface.) show work/ explanations
(a) 0.652
(b) 2.12
(c) 2.24
(d) 2.77
(e) 2.90