Answer:

Explanation:
According to coulombs law force between two charges is given by
here R is the distance between both the charges which is given as 25 cm
We have given force F =0.036 N
So
As
is constant which value is 


Answer:
3.528×10² V.
Explanation:
potential difference: This is the work done when one coulomb of charge moves from one point to another in an electric field. The S.I unit of potential difference is volt. The formula of potential difference is given as,
V = kq/r..................... Equation 1
And
E = kq/r² .................. Equation 2
Comparing equation 1 and equation 2,
V = E×r............................. Equation 3
Where V = potential difference, E = Electric field between the plate of the capacitor, r = distance between the plate.
Given: E = 6.3×10⁵ V/m, r = 0.56 mm = 0.00056 m.
Substitute into equation 3,
V = 6.3×10⁵×0.00056
V = 3.528×10² V.
Hence the potential difference of the plate = 3.528×10² V.
Yes what do you need help on
<span>Moon tides or lunar tides are caused
by the pull of gravity between the moon and earth. The moon will exert a
gravitational pull on earth and the earth also pulls the moon towards itself.
One of the results is that the moon is near the earth and the other one, the
oceans tide. Even though the earth can hold any object within ts proximity, the
ocean is partly attracted due to its liquid property. At night, the ocean tends
to be attracted to the moon by creating a bulge and assigning it as ‘high tide’.
This is due to the strong gravitational pull of th moon to the earth. The answer
is letter D.</span>