Gtwo balls of equal size are dropped from the same height from the roof of a building. the mass of ball a is twice that of ball b, m subscript a equals 2 m subscript b. when the two balls reach the ground, how do their kinetic energies compare? group of answer choices when reaching the ground, latex: ke_a=\sqrt{2}ke_b k e a = 2 k e b when reaching the ground, latex: ke_a=\frac{1}{2}ke_b k e a = 1 2 k e b when reaching the ground, latex: ke_a=2ke_b k e a = 2 k e b when reaching the ground, latex: ke_a=ke_b k e a = k e b when reaching the ground, latex: ke_a=4ke_b

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.