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Explain how mechanical waves travel. Give at least three real-world examples of mechanical waves.

• Mechanical waves need a medium to travel through.
• Ex: Slinky wave, Ocean wave, Sound waves

Explain why mechanical waves cannot travel in a vacuum.

• The reason why mechanical waves cannot travel through a vacuum is that a mechanical wave relies on particle interactions.

Explain how electromagnetic waves travel. Give at least three real-world examples of electromagnetic waves.

• Electromagnetics