26. Find a basis for H and determine the dimension of H. 52 18 3 9 3 Let H = span 2 7 4 10 35 20 6 17 52 18 [1 0 3 0 Note: If H = - 1 3 9 3 0 120 the reduced-row-echelon form of H is 1 2 7 4 5 10 10 35 20 001 0 0 0 0

(Conversion) An object’s polar moment of inertia, J, represents its resistance to twisting. For a cylinder, this moment of inertia is given by this formula: J=mr2/2+m( l 2 +3r 2 )/12misthecylindersmass( kg).listhecylinderslength(m).risthecylindersradius(m). Using this formula, determine the units for the cylinder’s polar moment of inertia.