3. Let F(x,y,z) = and let the oriented curve C be parametrizationt s 1. Find /= F - dr. Let C be the oriented curve parametrization t)i +(t )j +(sint)k, Ost s2n. Find the mass m of a chain that runs along the full length of the curve C and has mass density 6 (t) = t. Let m be the mass of a metal rod that occupies the full length of the curve with vector representation r (t ) =