12:12 AM Fri Jan 12 webassign.net 93% 13. [-/1 Points] DETAILS LARCALCET6 7.5.019. MY NOTES ASK YOUR TEACHER An open tank has the shape of a right circular cone (see figure). The tank is 8 feet across the top and 6 feet high. How much work is done in emptying the tank by pumping the water over the top edge? (The weight-density of water is 62.4 pounds per cubic foot.) ft-lb Additional Materials eBook Submit Answer 6-y Ay 14. [-/1 Points] DETAILS LARCALCET6 7.5.028. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider a 30-foot chain that weighs 3 pounds per foot hanging from a winch 30 feet above ground level. Find the work done by the winch in winding up the entire chain with a 800-pound load attached to it. ft-lb Additional Materials eBook Submit Answer 12:12 AM Fri Jan 12 Submit Answer webassign.net 93% 12. [-/2 Points] DETAILS LARCALCET6 7.5.015. MY NOTES ASK YOUR TEACHER A rectangular tank with a base 4 feet by 5 feet and a height of 4 feet is full of water (see figure). The water weighs 62.4 pounds per cubic foot. How much work is done in pumping water out over the top edge in order to empty the following amounts? (a) half of the tank ft-lb (b) all of the tank ft-lb Additional Materials eBook Submit Answer 5 ft 4 ft 13. [-/1 Points] DETAILS LARCALCET6 7.5.019. MY NOTES ASK YOUR TEACHER An open tank has the shape of a right circular cone (see figure). The tank is 8 feet across the top and 6 feet high. How much work is done in 12:12 AM Fri Jan 12 Additional Materials eBook Submit Answer 9. [0/1 Points] DETAILS PREVIOUS ANSWERS webassign.net LARCALCET6 7.4.039.MI. 93% MY NOTES ASK YOUR TEACHER Evaluate the definite integral for the area of the surface generated by revolving the curve about the x-axis. 33 16 1 y = + 6 1 x 2 2x' Need Help? Watch It Master It Additional Materials eBook Submit Answer 10. [3/3 Points] DETAILS PREVIOUS ANSWERS LARCALCET6 7.4.043. MY NOTES ASK YOUR TEACHER Set up and evaluate the definite integral for the area of the surface generated by revolving the curve about the y-axis. (Round your answer to two decimal places.) 2 1 8 y = +2 x -x +1 dx = 199.48 12:12 AM Fri Jan 12 PREVIOUS ANSWERS 8. [0/1 Points] DETAILS MY NOTES ASK YOUR TEACHER webassign.net LARCALCET6 7.4.034.MI. PRACTICE ANOTHER Find the total length of the graph of the astroid x 2/3 + y2/3 = 36. 1270 Need Help? -200 -100 Master It Additional Materials eBook Submit Answer y 200 100 100 -200 X 100 200 93%