The center of mass of a pitched baseball orradius 2.36 cm moves at 55.5 m/s. The ballspins about an axis through its center of masswith an angular speed of 67.1 rad/s. Calculate the ratio of the rotational energyto the translational kinetic energy. Treat theball as a uniform sphere.

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.

What’s #16 asking me and how do i solve it?

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.