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.
answer #9
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![Solve each word problems invoiving logarithmic functions, logarithmic equations, and logarithmic inequalities.
Box your final answer.
1. What is the magnitude of an earthquake in the Richter Scale that released an approximately 102
joules of energy?
2. What is the magnitude of an earthquake in the Richter Scale that released an approximately 102
joules of energy?
3. An earthquake had released an energy of approximately 7.04 x 10", determine the magnitude of the
earthquake.
For Number 4-6
Last March 5, 2002 Moro Gulf was struck by a 7.5 magnitude earthquake and on December 2, 2014, it was hit
again by an earthquake with 6.6 magnitude.
4. How much energy was released by the March 5, 2002 earthquake?
5. How much energy was released by the December 2, 2014 earthquake?
6. How much more energy was released by the 2014 earthquake compared to that of the 2002
earthquake?
For Numbers 7-8
An Earthquake released an energy 15,000 times that of another magnitude 5 earthquake,
7. How much energy was released by an earthquake of magnitude 5?
8. What is the magnitude of the earthquake that released an energy 15000 times that of another
earthquake with magnitude 5?
9. Determine the number of decibels from a normal conversation with sound intensity of 10° watts/m?.
10. Determine the number of decibels from a Jack Hammer with sound intensity of 3.2 x 10 wattsim?
11. Determine the number of decibels from a Jet plane with afterbumer with sound intensity of 8.3 x 10
wattsim.
12. If a vacuum cleaner sound measured 70 dB, determine the sound intensity in wattsim?.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc7fdc824-cd23-448f-b079-a3cc4f31eabd%2F54e6add3-d275-4da3-ac61-acb3674975b2%2Fzcrffi_processed.jpeg&w=3840&q=75)
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