Which of the following facts supports the big bang theory and disproves the static model of the Universe?
A.
Most galaxies appear to be moving away from each other.
B.
Stars are constantly forming and dying.
C.
Stars are held together by gravity within galaxies.
D.
Light moves at a constant speed through empty space.

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line