Answer:
Earth's first atmosphere 4.6 billion years ago was most likely comprised of hydrogen and helium (two most abundant gases found in the universe!)
Through the process of outgassing, the outpouring of gases from the earth's interior, many other gases were injected into the atmosphere. These include:
-water vapor (produced rain - rivers, lakes, oceans)
-carbon dioxide
-nitrogen
As outgassing occurred over a period of millions of years, the atmosphere evolved to its current state
Explanation:
Yes, because potential energy is energy stored up by an object.
Answer:
Plastic Glass and Paper
Explanation:
i just took the assignment
Answer:
Part a)
Part b)
Part c)
Explanation:
Part a)
As we know that ball will reach at maximum height at
t = 3 s
now we will have
now we have
Now maximum height above ground is given as
Part b)
Height of the fence is given as
Part c)
As we know that its horizontal distance moved by the ball in 5.5 s is given as
now total time of flight is given as
so range is given as
so the distance from the fence is given as
<h2>Answer: Fluids
</h2>
<u>Convective heat transfer occurs only in fluids</u>, through the movement of groups of molecules that make up the medium.
Being this molecular movement, related to the properties of the fluid that change with temperature.
This means that convection occurs when the hottest parts of a fluid ascend to the coldest zones, generating a continuous circulation of the fluid (better known as <u>convective current</u>) transmitting heat to the cold zones by decreasing the density caused by the increase in temperature.