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how do different parts of the em spectrum travel in a vacuum
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we dont have any textbooks for science
Really? Then how does your teacher think you can answer this question or all the ones before it?
usually look at what the worksheet has but it doesnt help
All parts of the EM spectrum travel through a vacuum or any other material both as a wave and as photons. Photons are the smallest bundles of energy, sometimes called quanta.
how fast?
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In a vacuum all photons travel at the speed of light.
\[c = 299 792 458 m/s \]
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