Sound Waves

With the same speed -Apex (1.2.4)

The speed of sound in air is approximately 343 meters per second. To convert this to miles per hour, we multiply by 3600 seconds per hour and divide by 1609.34 meters per mile, giving us roughly 767 mph. Therefore, it would take approximately 1 minute and 34 seconds for sound to travel 20 miles in ideal conditions.

This is echo.

Sound can be both digital and analog. In analog sound, waveforms are continuously varying, while in digital sound, the waveforms are represented by discrete binary numbers. Most modern audio technologies, such as CDs and MP3s, use digital sound, while older mediums like vinyl records use analog sound.

It means the air moves back and forth 70 times in one second. These vibrations in the air are what we perceive as sound.

Yes, some continuous loud sounds are related to hypertension (high blood pressure). In addition, sounds outside the audible range can make some people nauseous, etc., even if they are not all that loud. Loud sounds if sudden, sharp and loud enough, may damage your ear drums. An loud sounds experienced over a long enough period of time can damage your hearing.

Sound enters the outer ear and travels down the ear canal, where it causes the eardrum to vibrate. These vibrations are then transmitted through the middle ear bones to the inner ear, where they are converted into electrical signals that are sent to the brain. The shape of the ear and the presence of hair and earwax help to prevent sound from bouncing away.

Two narrow slits with gap 0.03 mm and got separated by 3 mm will be illuminated by a monochromatic light which comes out of single slit. These two slits are named as Young's double slits. The waves coming out of these two will be in coherence.

yes and no... depends on how close the source is...

through solids

Echo is a natural phenomenon, not invented.

A larger trough.

A standing wave?

If you have the time, just divide the distance by the time. That will give you the speed.

There is the 1/r law for sound pressure and distance. Double the distance from a sound source gives 6 dB less sound pressure level. Scroll down to related links and look at "Sound pressure and the inverse distance law ".

Imagination or you are more receptive to sounds that remind you of the Bible when reading it

Because it has to swish through more air molecules and push them out of the way

on every swing, more than the shorter pendulum would have to do.

Rw is measured in units of dB, there is no need for conversion.

we hear with our ear thats how we can hear sounds <3 lol

Yes. In some places it will be greater. In other places there will be destructive interference, and the resulting wave will be smaller than either, perhaps even zero.

Pitch