Two cars traveling with the same speed move directly away from one another. One car sounds a horn whose frequency is 402 Hz and a person in the other car hears a frequency of 386 Hz. Part A What is the speed of the cars? V= —| ΑΣΦ ? m/s
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
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Can you show step by step the algebra in the solution? I am having trouble figuring out how to do this. For instance, I see how the 386/402 happens because you are dividing each side by 402. But I do not understand how 308/402 * 402 becomes a part of the equation.
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