Edwin Hubble discovered in 1929 that the distances to far away galaxies were generally proportional to their redshifts. This was seen as strong evidence in favor of
A) relic radiation.
B) the radio spectrum.
C) the Big Bang theory.
D) steady-state theories.

The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kj/kg. the amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kj/kg. one kg of each substance is currently at its boiling point. how will the amount of thermal energy required to change each substance from a liquid to a gas differ?