What is drag?
what are fluids??
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Explanation:
In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.
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drug:
a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body.
"a new drug aimed at sufferers from Parkinson's disease"
fluid:
a substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
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