Question: A freshwater dolphin sends an ultrasonic sound to locate a
A freshwater dolphin sends an ultrasonic sound to locate a prey. If the echo off the prey is received by the dolphin 0.12 s after being sent, how far is the prey from the dolphin?
Answer to relevant QuestionsA submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of above the horizontal and the echo took 2.32 s to get back to the submarine. What is the object’s ...Sound propagating through air 30 oC at passes through a vertical cold front into air that is 4.0 oC. If the sound has a frequency of 2500 Hz, by what percentage does its wavelength change in crossing the boundary? Find the intensity levels in decibels for sounds with intensities of (a) 10-2 W/m2, (b) 10-6 W/m2, and (c) 10-15 W/m2. A rock band (with loud speakers) has an average intensity level of 110 dB at a distance of 15 m from the band. Assuming the sound is radiated equally over a hemisphere in front of the band, what is the total power output? At a rock concert, the average sound intensity level for a person in a front-row seat is 110 dB for a single band. If all the bands scheduled to play produce sound of that same intensity, how many of them would have to play ...
Post your question