Mathematics, 24.09.2020 18:01, brooklyn4682
38. (a) How much work is done lifting a 60 pound chair from the ground to the top of a 20 foot
building with a cable which weighs 1 pound per foot?
(b) How much work is done lifting the same chair from the ground to a height of 5 feet with the same
cable?
39. (a) How much work is done lifting a 10 pound calculus book from the ground to the top of a 30 foot
building with a cable which weighs 2 pounds per foot?
(b) From the ground to a height of 10 feet? (c) From a height of 10 feet to a height of 20 feet?
40. How much work is done lifting an 80 pound injured child to the top of a 20 foot hole using a stretcher
weighing 14 pounds and a cable which weighs 1 pound per foot?
42. How much work is done lifting an 120 pound injured adult to the top of a 30 foot hole using a stretcher
weighing 10 pounds and a cable which weighs 2 pound per foot?
Answers: 2
Mathematics, 21.06.2019 17:00, haydencheramie
The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation
Answers: 1
Mathematics, 21.06.2019 21:40, calebhoover03
Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000
Answers: 2
38. (a) How much work is done lifting a 60 pound chair from the ground to the top of a 20 foot
buil...
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