D.On the ocean floor. When tectonic plates move, They move along the ocean floor, which is the crust, and It causes earthquakes and volcanoes and also caused Pangea to break apart and become what it is now The seven continents.
Answer:
6.75×10^13N
Explanation:
The electric force between the charges can be determined using coulombs law which states that 'the force of attraction between two charges is directly proportional to the product of the charges and inversely proportional to the square of their distance between them.
Mathematically, F = kq1q2/r² where;
q1 and q2 are the charges
r is the distance between the charges
F is the force of attraction
k is the coulombs constant
Given q1 = 5C q2 = 15C r = 10cm = 0.1m k = 9×10^9Nm²/C²
Substituting the given values in the formula we have;
F =9×10^9×5×15/0.1²
F = 6.75×10^11/0.01
F = 6.75×10^13N
Therefore the electric force between them is 6.75×10^13N
Sex cells have half as many chromosomes as other cells. Sex cells are therefore called haploid.
Explanation:
According to the law of conservation of energy, work done by the force is as follows.
= 64.95 J
Now, gain in potential energy is as follows.
P.E = mgh
= 
= 29.4 J
Gain in potential energy will be as follows.
= 
= ![\frac{1}{2} \times 30 N/m \times [(2.5 - 1.5)^{2} - (2 - 1.5)^{2}]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%2030%20N%2Fm%20%5Ctimes%20%5B%282.5%20-%201.5%29%5E%7B2%7D%20-%20%282%20-%201.5%29%5E%7B2%7D%5D)
= 11.25
As,
= 64.95 J - 29.4 - 11.25
= 24.3
v = 4.92 m/s
Therefore, we can conclude that relative velocity at point B is 4.92 m/s.
