5 real SZF IOS questions on Sound. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
HARDA ship on the ocean surface uses sonar to detect a submarine below it. The ship sends an ultrasonic pulse which returns after 4 seconds. If the speed of sound in seawater is 1500 m/s, and the ultrasound pulse gets reflected twice (once from the submarine and once from the ocean floor before returning), what is the depth of the ocean floor? Assume the submarine is at half the depth of the ocean floor.