Answer:


Explanation:
Let the initial charge on the two spheres are

now we know that the force between them is given as



now when two spheres are connected then final charge on them is given as

now the force between them is given as

now we have

So by solving above two equations we have


Answer:
During the section CD , the speed is fastest.
Explanation:
The rate of change of distance is called speed.
Speed = distance / time
Its SI unit ism/s. It is a scalar quantity.
The slope of the distance time graph is given by the speed of the object.
Here, the speed of AB is 30/3= 10 m/s .
The speed of BC is = 0 m/s
The speed of CD is (50 - 30)/(6 - 5) = 20 m/s
So, the speed is maximum during the section CD.
Well visual and perceptual are both the way you see things and tactile is touch so it has to be Olfactory
Answer:
The first statement is false, the Sun has a stronger gravitational pull.
:
Answer:
Nuclear energy is that released by dividing the nuclei of heavy atoms (also called under the name Nuclear Fission)
Explanation:
In this process, a large amount of heat is generated that can be used to obtain mechanical energy, which is used to generate electrical energy.
Nuclear energy is a sustainable source of energy having a low impact on the environment.