As a wave moves through medium particles are displaced and

And return to their normal position after the wave passes.

Explanation:

Even though their positions are changed drastically after the wave in a medium, they eventually return to their original positions.

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5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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