Sound wave Definition and 206 Threads

Hi all, can somebody advise on this, Equation: P (change in pressure) = p (density of gas)*w*v*s(max displacement amplitute) P = pwvs Needed to know, is the density of gas always at 1.29kg/m(3)? I've this following qeustion: A piston at one end of a long tube filled with air at...

Dear all, if a sound wave of 1.0 kHz in air strikes the surface of a lake and penetrates into water. How can find the frequency of the wave in water ?? and assume the speed of sound in water is 1500 m/s for all frequencies ! the frequency in air is equal to the frequency in water ...

I've been reading about the physics of sound. Perhaps I'm just reading an overly simplified version of the truth, but it would seem to me that as the particles of the medium sound is traveling through compress and expand, inevitably bumping into each other, that they would loose some kinetic...

there is one formula given as follow (max pressure ) = (speed of wave)X(density of medium)X(angular frequency of the wave ) X (maximum displacement) in the book, there is no working shown how to arrive to this formula. anyone can show me the steps? thank you. (sorry, i don't know how...

Banana states: I need help setting this problem up: A person fires a rifle horizontally. The bullet has a muzzel speed of 200 m/s, and the person hears the bullet strike the target 1 second after firing. The air temp is 72 degrees Farenheit. What is the distance of the target? (I know to...

[SOLVED] Light and Sound wave problems PLEASE HELP! I have a few questions that I need assistance understanding and solving. I would greatly appreciate any help provided to me. 1. A musical instrument is invented that consists of a can with length L and diameter L/6. The top of the can...