8:45 a webassign.net 5. [-/7 Points] DETAILS SCALCET9 6.4.007.MI.SA. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise A force of 7 lb is required to hold a spring stretched 6 in. beyond its natural length. How much work W is done in stretching it from its natural length to 9 in. beyond its natural length? Click here to begin! Need Help? Read It Submit Answer 6. [-/8 Points] DETAILS SCALCET9 6.4.013.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A heavy rope, 60 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 130 ft high. (Let x be the distance in feet below the top of the building. Enter x,* as x;.) (a) How much work W is done in pulling the rope to the top of the building? Show how to approximate the required work by a Riemann sum. lim 7-+20 AX Express the work as an integral. Evaluate the integral. ft-lb (b) How much work W is done in pulling half the rope to the top of the building? How much work W is done in pulling half the rope to the top of the building? Show how to approximate the required work by a Riemann sum. lim 1-+00 Ax Express the work as an integral. dx Evaluate the integral. ft-lb Need Help? Read it Watch It Master It Submit Answer 7. [0/1 Points] DETAILS PREVIOUS ANSWERS SCALCET9 6.4.025. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A tank is full of water. Find the work (in ft-lb) required to pump the water out of the spout. Use the fact that water weighs 62.5 Ib/fts. (Round your answer to the nearest whole number.) 6 ft 10 ft 3 ft frustum of a cone 2026 x ft- lb Need Help? Read It Watch It Submit