Do not press Submit until all questions are colored green an Question 1 Find the mass and center of mass of the plate that occupies the region 2 and has the density function ). Evaluate : 3 cos(0) r sin(0) dr de 0 : 05 251, 0 5 y 5 VI-r A (x, y) - 3ry a) OM- a) O - oh | 00 + b)OM = - 1 co 16 15: UN = 16 O 9V/3 + 3 c) .M= 2 8 151 UM = 3 d) OM =- 15 40=- O K e) OM=- 8 () @ None of these. d) O 9V3 e) O + ( ONone of these. Question 2 Integrate f (x, y) = 5 cos(12 + y?) over 1 5 2 + 2 <9