The two forces acting on a falling object are gravity and

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

Why are graphs useful when interpreting data

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.