Question: please show work and draw graph it will help me understand 4. (10 points) Use the method of cylinders to determine the volume of the

please show work and draw graph it will help me understand

4. (10 points) Use the method of cylinders to determine the volume of the solid obtained by rotating the region bounded by .1: = (y le'f = 0., y = 0 about the xaxis. 5. (10 points) A spring has a natural length of 20 cm. A 40 N force is required to stretch (and hold the spring) to a length of 30 em. How much work is done in stretching the spring from 35 cm to 38 cm
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