C is the answer! It definetly is! First of all D is wrong cause there is no water on the moon, B is wrong cause the Earth didn't do anything. A is wrong because the sun is too far for it to even tough the moon. C well meteoroids hit moons and plantets before. Hope I helped!
Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=
Consider an ideal gas at 27.0 degrees celsius and 1.00 atmosphere pressure. imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. what is the length l of an edge of each small cube if adjacent cubes touch but don't overlap?