A container having a volume of 1 m holds
67th of helium gas at 147°C.-
Boltzmann's constant is 1.38 x 10-23 J/K.
Assuming the helium behaves like an ideal
gas, what is the average kinetic energy per
molecule?
Answer in units of J.

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?