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Q: What kind of wave is produced when an engine bumps into a string of coupled railroad cars in track?
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Is an engine bumping into a string of coupled railroad cars on a track producing transverse or compressional waves?

An engine bumping into a string of coupled railroad cars on a track produces both compression and transverse waives. The engine bumping into the cars creates compressional waves down the string of cars. These waves are taken up by the spring action of the Janney couplers. The law of inertia can cause transverse waves in the coupling motion that can force railroad cars off the track. Think of it this way. If all cars in a cut weight about the same, as one car bumps into the other most of the force is passed down the string of cars. If a empty car pushes into a loaded car too fast the empty car may not have the force to start the loaded car moving. All the force that the empty car has has to go somewhere. The only direction it can go is up or to the side derailing the empty car. That's why there are restrictions on how fast cars can be coupled together. The spring action in the couplers in railroad terms is called slack.


How does a guitar string's physical change produce sound?

The sound is produced by the vibration of the string.


Can a string instrument play a note lower than the note produced from its lowest string?

No.


Why does tightening a guitar string raise the pitch of the string when its played?

It increases the frequency of the sound waves produced by by the plucked string.


Why does tightening a guitar string raise the pitch of the string when it is played?

It increases the frequency of the sound waves produced by by the plucked string.


What is the string instrument played with the fingertips?

Pizzicato is produced on a string instrument by plucking the string with the finger.


Why does tightening a guitar string raise the pitch of the string when it's played?

It increases the frequency of the sound waves produced by by the plucked string.


Tone produced by one vibration of a string?

Fundamental


How does sound travel through a string instrument?

it is produced by the string vibrating on the instrument when you strum it.


Plucking a guitar string is a physical change however the process produces sound?

The sound is produced by the vibration of the string.


How can you change the length of a vibration string?

Moving your finger along the string will alter the length and the pitch of the sound produced.


How you can change the length of vibrating string?

Moving your finger along the string will alter the length and the pitch of the sound produced.