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?

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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?