Light shines through atomic hydrogen gas. it is seen that the gas absorbs light readily at a wavelength of 91.65 nm. what is the level to which the hydrogen is being excited by the absorption of light of this wavelength? assume that most of the atoms in the gas are in the lowest level.

1) sections 1, 2, and 10 are significant primarily because they suggest the likelihood that a) widow wycherly is actually the woman in the full-length portrait. b) dr. heidegger wants to include his guests in an experiment with the water. c) dr. heidegger plans to drink some of the water from the vase and needs witnesses. d) the guests will be asked to witness dr. heidegger's transformation when he drinks the water.

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?