HELP ITS MY LAST QUESTION AND ITS URGENT Which discovery by astronomer Vera Rubin helped prove the existence of dark matter? Galaxies exist outside of the Milky Way.
The expansion of the universe is accelerating.
Galaxies spin faster than they should, based on their visible matter.
Gas giants form farther from the Sun, where temperatures are cooler.

Research the neutrino using the internet and report your findings. in a nuclear decay, the nucleus of an atom splits apart. larger particles can be detected and their masses and velocities can be recorded. explain how the existence and properties of the neutrino could be predicted using the conservation laws.

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.