You drop a stone into a well and note that it takes 2.00 seconds to hit the bottom. how deep is the well

The speed of sound is also fast enough to ignore in many cases. A 16 foot deep well will have a one second drop. A ~64 food deep well will have a two second drop.

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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vapour or gas assuming atmospheriv pressure