. Question 12 If r(t) is the position vector of a particle in the plane at time t, find the indicated vector. Find the acceleration vector. r(t) = (7 In(2t))i +(4+3); O a = - - -t-2i + 24tj O azzi+12tj O. To 7i+ 24tj a = - t 21 + 24tj + 2 Previous esc Of LO m + COD Question 11 6.25 pts Solve the problem. Let D be the region bounded below by the xy-plane, above by the sphere x2 + y2 + z2 =100, and on the sides by the cylinder x2 + y2=81. Set up the triple integral in cylindrical coordinates that gives the volume of D using the order of integration dr dz de . O V19 9 r dr dz de 271 10 81 - z2 O r dr dz de V19 0 O 2 71 V19 10 9 r dr dz de + V100 - Z2 r dr dz de o V19 0 V19 19 10 r dr dz de V100 - 22 + r dr dz de 0 o V19 0 O V19 10 9 81 - z2 r dr dz de + r dr dz de V19 0 Previous Next