Estimate the total rotational moment of inertia in Kg*m^2, of all the motors and generators in the Eastern United States.
No other information was provided.
The Attempt at a Solution
First off I went to the following web site to estimate the generation capacity of the Eastern U.S.
I came up with a total of 2.1673e8 MWh for the Eastern U.S.
I know that 1 KW=3600 Joules.
so from this I get a total of 7.80228e14 Joules
From here I am at a loss at how to convert this to rotational moment of Inertia( Kg*m^2)