In the lab, it is relatively easy to measure the activity of a sample and to estimate the mass of carbon in the sample. from these measurements, it is possible to find the age of the sample.

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost