The key insight that bohr introduced to his model of the atom was that the angular momentum of the electron orbiting the nucleus was quantized. he introduced the postulate that the angular momentum could only come in quantities of nh/(2π), where h is planck's constant and n is a nonnegative integer (0,1,2,3,…). given this postulate, what are the allowable values for the velocity v of the electron in the bohr atom? recall that, in circular motion, angular momentum is given by the formula l=mvr.

compass can be used day and night, cloudy or sunny

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!

there are no components of a physical goal mentioned on the list of choices that you've provided.