Harmonic oscillators obey this law to a linear approximation, so it is useful in quantum mechanics, and it does not apply above a point known as the elastic limit because it models reversible, elastic displacements.
The general version of this physical lemma is relation between the stress and strain with a tensor of proportionality known as Young's modulus. Harmonic oscillators obey this law to a linear approximation, so it is useful in quantum mechanics, and it does not apply above a point known as the elastic limit because it models reversible, elastic displacements. FTP, name this physical law that is usually given as simply F  equals minus k delta x, or the restoring force is proportional to the distance of displacement.
The general version of this physical lemma is relation between the stress and strain with a tensor of proportionality known as Young's modulus.
Hooke’s law