Answer:
<u>Definition: </u>
Speed of light, speed at which light waves propagate through different materials. In particular, the value for the speed of light in a vacuum is now defined as exactly 299,792,458 metres per second.
<u>Calculation:</u>
Formula: c = f where: c = the speed of light = 300,000 km/s or 3.0 x 108 m/s. = the wavelength of light, usually measured in meters or Ångströms (1 Å = 10-10 m)
Explanation:
Hope this helps
Please mark as brainliest
Have a wonderful day
:)
Answer:
Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix. These sources originate mostly in our local star, the Sun. Electricity falls into its own category because it's an energy carrier and not a primary source.
Explanation:
Jonathan Swift's essay is telling us or proposes to clarify the disastrous poverty in Ireland by auctioning poor kids as food for the rich families. Swift goes on to assert how this would answer the entire Ireland's dilemma from domestic injustice to poverty.
Answer:
I do think that this is true,
Explanation:
I see many people, especially younger people, who wish that they couldmake a difference in the world and in other people’s lives, but feel as though they are unable to orare actually unable to due to obstacles in their own lives.
<u>Answer:
</u>
Gravity causes stars to form out of gas clouds
.
<u>Explanation:</u>
The formation occurs in molecular clouds in the interstellar space. The atoms of light are first forced under sufficient pressure so that their nuclei undergo fusion. The gravitational force is responsible for this fusion to begin.
The gases present in these clouds clump to form molecules with higher densities. Due to the internal gravitational disturbance, there begins to occur a collapse of the denser regions of the cloud. As the collapse continues to occur, the temperatures begin to increase and each of the smaller clouds will eventually form a star.
