posted by nikki on .
Suppose partial melting of the polar ice caps increases the moment of inertia of the Earth from 0.331MR^2 to 0.332MR^2. What is the change in length of day in seconds?
momentum is conserved
but angular velocity=2PI/period
period new= periodold*(..331/.332)
change in period
period new-period old
change in period=24*3600(.332-.331)/.331
I get about 260 seconds. check all that.