An electric fan spinning with an angular speed of 13 rad/s has a kinetic energy of 4.6 j. what is the moment of inertia of the fan?

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

The radius of an atom is closest in size to a