The rate at which momentum is transferred from one object to the other equals the force between the objects: how hard they push on each other.

In the figure, we assume that the order-fulfillment rate equals 97 percent and the order-fulfillment lead time is three weeks.

That is, the rate of substitution equals the neutral mutation rate.

The rate of regular tobacco use by 18- to 24-year-olds, once half that among older adults, now equals it.

The rate of erosion equalled the uplift in the region, such that the river was left at about its original level while the surrounding lands raised.

This rate, with the addition of the guide's expenses, equals about 5s.

The jobless rate equaled the figure in May 1979, which had been the lowest since August 1974.

They were proved wrong, since the economy grew 3.9 percent in 1988, a rate not equaled for any year since then.

At every age, rates of coronary disease in diabetic women equal those of nondiabetic men.

An alternative that yields an identical answer is that the effective rate of protection equals ), where: