The sun produces energy by converting gravitational potential energy into radiation via quantum processes in the nucleus of the atoms.
Since the mass of the sun and it's temperature are not quite enough to generate nuclear FUSION on their own, quantum tunneling is the primary process by which nuclear fusion occurs in our sun, SOL. FISSION also occurs as a result of this fusion.
Additionally, gravitational potential energy is also the reason that supernovae are so bright. Cool!
Answer:
The magnitude of the torque is 263.5 N.
Explanation:
Given that,
Applied force = 31 N
Distance from the axis = 8.5 m
She applies her force perpendicularly to a line drawn from the axis of rotation
So, The angle is 90°
We need to calculate the torque
Using formula of torque
![\tau=Fd\sin\theta](https://tex.z-dn.net/?f=%5Ctau%3DFd%5Csin%5Ctheta)
Where, F = force
d = distance
Put the value into the formula
![\tau=31\times8.5\sin90](https://tex.z-dn.net/?f=%5Ctau%3D31%5Ctimes8.5%5Csin90)
![\tau= 263.5\ N](https://tex.z-dn.net/?f=%5Ctau%3D%20263.5%5C%20N)
Hence, The magnitude of the torque is 263.5 N.
"Changing water salinity" is the most significant challenge for organisms that live in estuaries.
<u>Answer:</u> Option D
<u>Explanation:</u>
For estuaries, alkalinity levels are usually the maximum at a river's mouth where the ocean water falls for, and the minimum upstream where freshwater falls in. Although salinity vary throughout the tidal cycle. In estuaries, salinity rates usually decrease in spring as snow melt and rain raises the freshwater flow from streams and groundwater.
It influences the chemical environments within the estuary, especially the dissolved oxygen (DO) levels in the water. The level of oxygen that would get dissolved in water or its solubility get declined when the alkalinity rises.
Answer:
-20.158ft-lb
Explanation:
Check the attached files for the explanation.