1.000. An ellipse with an eccentricity of 0 is a circle.
Answer:
1.04%
Explanation:
Given that,
The power of drill = 3.5 kW = 3500 W
Transferred kinetic energy = 5000 kJ during 15 seconds of use.
We need to find the percentage efficiency of the drill. It can be given by :

Where
Po and Pi are output and input powers.

So,

So, the percentage efficiency of the drill is 1.04%.
C because gravity is holding everything down
That reactants are favored.
Explanation :
It is given that,
Charge, 
Electric field, 
Distance, 
The work done is stored in the form of potential energy.


So, 


Hence, this is the required solution.