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Why is the pitch of a train's whistle higher as the train approaches and loweras it moves away?
Wiki User
∙ 14y ago
This is known as the Doppler effect. As the train approaches you, the wavelength of the sound waves it emits are compressed, and therefore the whistle sounds higher. When the train is moving away, the wavelengths are extended, causing the whistle to sound lower. If the train were not moving at all, the pitch you would hear from the whistle would be somewhere between the high and low pitches you hear when the train is moving.
Wiki User
∙ 14y ago
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How do superconductors increase the speed of trains?
Superconductors allow the train to 'float' on a layer of magnetism. Since there is no friction (as there would be with wheels on a track) - the trains can reach much higher speeds.
How do steam trains work?
Steam trains relay on three major factors: coal( or anything that burns), fire and water.The coal, from the tender, keeps the fire burning or you could use a wood or a gas such as propane. The water gets heated by the fire like a pot of water on the stove. Them, the extra steam gets stored into a dome while the rest rushes down the boiler to the pistons. The pistons are what makes the wheels go round and round. There are two sets of pistons on each side and when the steam goes back and forth, you get a hissing sound. The left over steam is sent up the smoke stack. The throttle applies pressure to the steam which gives you the chuffing sound from the stack. From the stored steam in the dome, its used to make the whistle sound. The whistle is shaped to make a specific sound when applied pressure to, thus, the loud whistle sound. You tell this if you see steam comming out of the whistle. If you have anymore questions, go to my website. kimvrr.webs.com
What type of energy makes a train move?
This depends on the type of train. There are diesel trains, electric trains. Electric trains are run by electricity through motors.
When people say that a tornado sounds like a freight train do they mean the train whistle or do they mean the chug chug sound as the train goes over the railroad tracks?
Neither. The sound they refer to is the general rumble or roar of the train going down the tracks. The "chug chug" is characteristic of steam steam trains which are rarely used nowadays.
How do you calculate the relative speed of two trains passing each other?
If two trains are passing each other the relative speed can be found by adding the individual speeds of the two trains. This applies if the trains are passing each other in opposite directions. Should one be passing the other and both be moving in the same direction, the difference of the individual speeds would be the relative speed of the trains.
The whistle announced the trains's arrival at the station?
the whistle announced the trains's arrival at the station
What is the simple subject of this sentence The whistle announced the trains arrival at the station?
Whistle
The whistle announced the train's arrival at the station?
the whistle announced the trains's arrival at the station
Are steam trains relaterd to trumpets?
No. it just sounds the same pertaining to what type of chime whistle they have.
What vehicle runs on a track and blows a whistle?
Train nmbmnbbhjgmbmbjkhkhukhkibj,hvhvui.ggikugkugytyfyjtfjtyfjuyfyyjfhjtfhytfhytthydhttdhgtd4thdhytfuytcthyfyjhgkuygliubjh,bhkjgkuhvkuyvuyccumycufukgfugjfhgfnygcyntfthyddythccyjtccjytcgcnhgcjhgvhngvmhgvhmgvhmgvgjhvnhgcnhgcfngcngfcngfchgfjhgcfngcmhgfmh
What is the name of small railway station?
These were sometimes called whistle stops or flag stops because trains stop there only by request.
How do you spell the sound of a train?
Early trains and toy trains (choo choo) may be "chugging" along, "roaring", or "whistling", depending on their speed. Other sound words including cannonballing, streaking, grinding, and hurtling. The sounds of a train whistle can be a whistle, toot, hoot, or shriek. Modern air horns can be said to make a blast, trumpet, honk, or blare.
How has trains changed since 1867?
they are cool Many trains no longer use 'slam doors' (doors that you manually open) - they use automatic electronic doors instead. More modern trains can travel at higher speeds and all the steam locomotive trains have now been replaced by diesel trains.
In Zelda spirit tracks were is the clues in the rocks?
The clues are stone fishes with orbs in their mouth. You have to pull your trains whistle till the orb in their mouth turns blue do this to all of them and the entrance will be activated.
How do superconductors increase the speed of trains?
Superconductors allow the train to 'float' on a layer of magnetism. Since there is no friction (as there would be with wheels on a track) - the trains can reach much higher speeds.
What are the problems of steam engine trains?
Lower efficiency than diesel, and much higher maintenance .
What eats a paradise tree snakes eat?
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