- #1
AndersLau
- 4
- 0
I want to find the rotational energy of the sun.
Erot=1/2*I*ω2
m=1.9891*10^30 kg
r=6.955*10^5 km
When I am using the formula for a sphere's moment of inertia: I=2/5*m*r2
I'm getting 3.848671797*1047 km*m2
Can i find the moment of inertia in another way? the moment of inertia needs to be in *1046 , to get the rotational energy right.
Thank you.
Erot=1/2*I*ω2
m=1.9891*10^30 kg
r=6.955*10^5 km
When I am using the formula for a sphere's moment of inertia: I=2/5*m*r2
I'm getting 3.848671797*1047 km*m2
Can i find the moment of inertia in another way? the moment of inertia needs to be in *1046 , to get the rotational energy right.
Thank you.