Answer:
Energy Level K
Explanation:
In electronic configuration there are four shells named <em>KLMN</em><em> </em> which hold 2 , 8 , 18 , 32 electrons respectively.
Two point charges are on the y axis. A 4.50-σC charge (
) is located at y=1.25 cm (
) , and a -2.24-σC charge (
) is located at y=-1.80 cm (
).
The total electric potential at the origin is
.
How to calculate the total electric potential at the origin?
The total electric potential at some point due to several point charges is represented by:

Here,
(Columbic constant)
The total electric potential at point
is the sum of the potentials due to
and
will be:

Substituting the values, we get:

Hence, the total electric potential at the origin is
.4
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The fundamental frequency of a string is given by:

where L is the string's length, T the tension and

the linear density of the string.
We can see that f1 is proportional to the square root of T:

.
This means that if the new tension is half the initial value, the new fundamental frequency will be proportional to

So, the new fundamental frequency will be
A year on Earth is 365 and 1/4 days (rounded). It corresponds to
one revolution of the Earth in our orbital path around the sun.