Question (10 Points)
Research vessels at sea can create images of their surroundings by sending out sound waves and measuring the time until they detect echoes. An image of a shipwreck is made from the surface of the ocean using 600 kHz ultrasound. (a) If the speed of sound in water is 1498 m/s, what is the wavelength of the sound? (4 points) V = 1498 m/s, f = 600 kHz, λ = ?
(b) If the echoes from the shipwreck are detected 0.4 s after the sound is emitted, how deep is the wreck below the surface? (6 points) t = 0.4 s, v = 1498 m/s, d = ?