What is the total random Kinetic energy of all the molecules in 1 mole hydrogen at temperature of 3ook? with what speed would a mole of hydrogen have to move so that the Kinetic energy of the mass as whole would be equal to the random Kinetic energy of its molecules?

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices

Convection currents are caused by differences in what two things?