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ddd [48]
3 years ago
10

How do magnetic trains work and what advantages do they have compared to regular trains

Physics
1 answer:
ad-work [718]3 years ago
7 0

Answer:

magnetic trains works at the principle of repel on of the advantage is that they are fast and dont really need diesel

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The speed of sound in wood is ____ the speed of sound in water.
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Answer:

greater

Explanation:

the speed of sound in steel is greater than water. the speed of sound in wood is not, In water, the particles are much closer together, and they can quickly transmit vibration energy from one particle to the next. This means that the sound wave travels over four times faster than it would in air, but it takes a lot of energy to start the vibration.

Wood is less dense and force can make a sound.

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3 years ago
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