I keep getting this question wrong I'm not sure why.

6. [0/1 Points] DETAILS PREVIOUS ANSWERS SERPSE10 16.7.OP.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER While floating in the ocean, a dolphin emits a sound wave directed toward the hull of an ocean liner d = 533 m away. How long (in s) until the dolphin hears an echo? Assume the water temperature is 25C, and the speed of sound in the water is 1,533 m/s. 0.347 X This is the time it takes for the sound wave to reach the ship. You are looking for the total time for the wave to reach the ship and return to the dolphin. s Need Help? Read It