Aball is released out a window that is 43 m above the ground. at what speed will it hit the ground? assume air resistance is negligible.

58 m/s

29 m/s

0.86 km/s

0 m/s

How do we measure or think of speed in the united states?

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.

Avoltaic cell converts chemical energy to