if the maximum excitation energy gained by an atom is 12.09 ev, determine all of the wavelengths of light emitted from the tube as atoms return to the ground state.

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine