What are the differences between an element, a compound, a homogeneous mixture, and a heterogeneous mixture?

Visibly different substances

Explanation:

A substance consisting one type of atom. heterogeneous mixture: A mixture that consists of visibly different substances or phases. homogeneous mixture: A mixture that has the same uniform appearance and composition throughout its mass.

Thrust is the force which moves an aircraft through the air. ... Since thrust is a force, it is a vector quantity having both a magnitude and a direction. The engine does work on the gas and accelerates the gas to the rear of the engine; the thrust is generated in the opposite direction from the accelerated gas.

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