9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How much work is done lifting the cable alone? (b) How much work is done lifting the load alone? (c)...
9. a. A spring has constant k-5lb./in. Its natural length is 12 inches. What is the work required to compress it to 9 inches? b. A 100 ft. cable weighs 40 lbs. Find the work done in winding the cable onto a winch, if the cable is hanging vertically c. An unknown positive charge q is placed at the origin. The force F (in Newtons) with which this charge repels a unit positive charge is given by F-kq/r, where k...
2&3 only A power lifts 500 lb 6 ft off the ground. how much work has he performed?___ft-lb work =____kg-m work. How many calories of energy did he use to produce this work?____cal. If he performs this feat 11 times in 1 min. What is his power output?_____HP =_____W. A physician has ordered a 0.35 mg/kg of body weight drug dosage for a 215-lb patient to control his blood sugar levels. How large is each dose?____Atomic weights: Na = 25...
its chapter 6.4 or something work problems This is a Calc question you're supposed to read the text next to the picture and answer questions from A to E Take-Home 31 Directions: Do all work on separate paper. Due date is the beginning of class on The time the assignment is due is the BEGINNING OF CLASS. Late work will not be accepted! Submit the assignment early so you are not late. Do not put work on this paper, provide...