This naturally occurring isotope has been shown to vary linearly with depth.

Since the forces of water on a dam are hydrostatic forces, they vary linearly with depth.

For a linear medium, only the first term of this equation is significant and the polarization varies linearly with the electric field.

Therefore the longitudinal normal strain varies linearly with the distance y from the neutral surface.

But the elasticity of the spring varies linearly with temperature.

Since each individual term varies linearly with the difference (b a), so does their sum.

The stopping voltage varies linearly with frequency of light, but depends on the type of material.

Usually at "warm" temperatures the resistivity of a metal varies linearly with temperature.

Protein stabilities are typically found to vary linearly with the denaturant concentration.

This description leaves the details of the structure undetermined, which can vary linearly and branched.