The particles that makeup rock are constantly in motion. however, the rock doesn't visibly vibrate . why do you think this is.

Nevertheless, yet the particles vibrate rapidly. This vibration is the manifestation of the thermal energy of the substance. The vibration of the atoms or molecules in a solid is of very short amplitude: it happens at atomic level, so that vibration is not visible.

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if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.