Answer:
Aufbau Principle
Explanation:
According to the The Aufbau Principle, the electrons will initialize the filling process of the orbital by filling the available orbitals with the lowest energy first prior to the filling the available orbitals of higher energies.
Since, in order to gain stability, each and every electron in an atom tends to minimize its energy, therefore, the energy of the atom as a whole is also minimum.
The answer is ( lihgt year )
To solve this problem it is necessary to apply the concepts related to work and power.
Remember that work is defined as the force applied on a body - or exerted by it - to travel a certain distance, and that the power is that energy mentioned to perform that activity in a given instance of time.
Mathematically work is defined as
Where
d = Distance
At this case the acceleration is the same that gravitational acceleration
At the same time we have that power is defined as
Replacing our values we have that the Work done was
Now substituting this value at the Power equation we have
Therefore the power that she is supplying is 100W.
Is is there for 19 years.