Answer : The correct option is, X : radius and Y : tangential speed
Explanation :
Centripetal force : It is defined as a force which acts on the object to keep the object moving along a circular path.
Formula for centripetal force :
![F_c=\frac{m\times V^2}{r}](https://tex.z-dn.net/?f=F_c%3D%5Cfrac%7Bm%5Ctimes%20V%5E2%7D%7Br%7D)
where,
= centripetal force
m = mass
r = radius
V = tangential speed
The quantity belong in cell X is radius and in the cell Y is tangential speed
Hence, the correct option is, X : radius and Y : tangential speed
Because alpha particles are positive charged. And they bounce back because of the electromagnetic force between them and the gold foils protons.
For the given portion of the diagram, the sequence will go as follows:Sedimentary rock ----> Heat and pressure ---->
metamorphic rock --->
melting ----> magma
Therefore, from the given choices, the correct choice would be:d. P represents metamorphic rocks and Q represents melting
Note: For the complete rock cycle, refer to the attached image.
WARMER AND WETTER BIOMES GENERALLY HAVE MORE PLANTS, WHICH NEED MORE SUNLIGHT. THE SUNLIGHT CONTRIBUTES TO THE HIGHER NET PRODUCTIVITY