1. A solid is bounded by the upper hemisphere and the xy-plane. The density function is p (m, y, z) = 1'. Which of the following types of integrals should be used to nd the mass of the solid? 0 triple integral 0 double integral 0 single integral 0 line integral 0 surface integral 8. A at lamina occupies the part of the disk :52 + y2 S 1 in the rst quadrant. The density function is p (:L', y) = my. Find the moment about the y-axis. My. (If your answer is a fraction, type it in using a forward slash / without any space in between . For example, 1/2. Do not enter a decimal.) 4. For the same at lamina and same density function for the previous question, calculuate the x-coordinate of the center of mass for the lamina. Input only the x-coordinate. (If your answer is a fraction, type it in using a forward slash / without any space in between. For example, 1/2. Do not enter a decimal)