Question #4 - Find the total amount of work required to pump a liquid out the top with a weight density of p : 2N f 0mg if h = 18 cm. Question #5 Find the arc length if the curve y : 23:\" from X = 0 to x = 3. (1.5pain Question #6 Find the total amount of work required to pump a liquid through the pipe at the top with a weight density of p = ION I m3 if the tank below is lled to a depth of 2m. . 3'\" ~l F'a\" 8m