Answer:

б / 
Ф ( б /
)
Explanation:
<u>Develop a suitable set of dimensionless parameters for this problem</u>
The set of dimensionless parameters for this problem is :

б / 
Ф ( б /
)
and they are using the pi theorem, MLT systems
attached below is a detailed solution
To get the charge along the inner cylinder, we use Gauss Law
E = d R1/2εo
For the outer cylinder the charge can be calculated using
E = d R2^2/2εoR1
where d is the charge density
Use these two equations to get the charge in between the cylinders and the capacitance between them.
Half mass car because it's traveling faster
The answer you're looking for is: reproductive success.
Hopefully this has helped! :)