Sound velocity (m/sec) High 1,000 Sound bends 500 down -2,000 Path of waves 3,000 Min. Low 1,000 sound velocity SOFAR layer 4,000 1,500 - 5,000 Sound bends up High *= Sound source Increase This part of the waves moves more slowly... So the path of waves curves and the waves are refracted ... and this part moves faster. toward the lower velocity. The depth of minimum sound velocity (see again Figure 6.25). b The SOFAR layer, in which sound waves travel at minimum speed. Sound transmission is particularly efficient-that is, sounds can be heard for great distances-because refraction tends to keep sound waves within the layer. Depth (m) (4) yndea Increase 4 Increase → Relative velocity of sound GujuJee abebuago

Q: When sound passes through a doorway, it spreads out much more on the other side than light would.…

A: We know that the more the wave deflects from objects in the room, the more it will spread in it. we…

Q: A loudspeaker is placed near the open end of a pipe length 87 cm closed at its other end. Calculate…

A:

Q: A pebble is dropped in a lake; and it produces ripples with a frequency of 0.50 Hz.  When should a…

A: Given Frequency f=0.5 Hz

Q: Find the ratio of the intensities of sound waves if one is 8 dB louder than the other.

A:

Q: You should hello into an echo chamber that is 250 m long. Assuming that the speed of sound is 340…

A: length of the echo chamber, d = 250 m speed of the sound , Vs = 340 m/s no damping of sound is there

Q: (2) The pipes in organs are much bigger than our tube. What would be the fundamental frequency of an…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

Q: (a) What is the speed of sound (in m/s) in a medium where a 152 kHz frequency produces a 0.635 cm…

A: Given, frequency f =152 kHz and wavelength is =0.635 cm

Q: The area were the molecules are least crowded in a sound wave is called the _

A: The area were the molecules are least crowded in a sound wave is called the _Rarefaction

Q: (c) Two identical speakers are placed at the positions X and Y, as shown in the following figure.…

A:

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.