A baseball is struck at home plate and acquires a speed of 60m/s. It rises to a height of 100.0 m above the starting level. Find its speed at the height. The answer is supposed to be 40.5m/s

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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that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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