Bryce, a mouse lover, keeps his four pet mice in a roomy cage, where they spend much of their spare time, when they're not sleeping or eating, joyfully scampering about on the cage's floor. bryce tracks his mice's health diligently and just now recorded their masses as 0.0215 kg, 0.0153 kg, 0.0165 kg, and 0.0159 kg. at this very instant, the ‑ and ‑ components of the mice's velocities are, respectively, (0.791 m/s,−0.841 m/−0.985 m/s,−0.789 m/.559 m/s,0.911 m/s),and (−0.613 m/s,0.883 m/s) . calculate the ‑ and ‑ components of bryce's mice's total momentum, and .

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.