A geological time scale shows the millions of years Earth has existed. It shows changes that have occurred throughout time. I believe it also shows animals that have gone extinct
Answer: Energy of a mole of these photons is 
Explanation:
The relationship between wavelength and energy of the wave for 1 mole follows the equation:
E= energy
N= avogadros number =
= wavelength of the wave =
h = Planck's constant = 
c = speed of light = 
Thus the energy of a mole of these photons is
Answer:
D
Explanation:
This is a phenomena by a black body. A black body is reckoned to absorb all energy it receives this is because it gives off energy of different frequency ranges hence as the frequency increases the energy rises.
Velocity is the rate at which displacement changes with time. It is a vector, too. The average velocity over some interval is the total displacement during that interval, divided by the time. ... Speed is a scalar, which describes the total distance travelled by some object during some time interval. Plze mark me brainiest
