What did bohr's model of the atom do that rutherford's model did not?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction

Which of the following is true about the speed of light? it depends on the wavelength.