putman

Evaluate (if possible) the vector-valued function at the indicated value of t. r(t) = rt{t}i + [t^(3/2)]j + [e^(-t/4)]k at t = [9 + delta(t)] show me step plllllz

A skate dancer spins about a vertical axis at 1rev/s with arms out Stretched.with her arms folded,her moment of inertia about the vertical axis decreased by 60%,Calculate the rate of revolution... Plz show step