subject
Physics, 29.02.2020 01:24 zoeatlowapple

A person pulls a bucket of water up from a well with a rope. Assume the initial and final speeds of the bucket are zero (Vi-Vf-0), and that the person lifted the bucket a vertical distance h. By looking at energy changes in the bucket-Earth physical system, we can make sense of the force the person must exert to pull the bucket up and the amount of work the person does. a) Think about whether this is an open or closed system. What energy systems undergo a change in energy during the process? Construct a particular Energy-System Diagram for this process and include the algebraic expression of energy conservation (in terms of AE's and if open, any Heat or Work). b) Substitute the algebraic expression we use for the change in gravitational potential energy and solve algebraically for the work done by the person on the rope/bucket. c) Use the definition of work in terms of force and distance (see p.39-40 of Chapter 2 in the Course Notes) to find the average force exerted by the person on the rope and bucket while they are lifting it up.

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 20:00
When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.
Answers: 1
question
Physics, 22.06.2019 15:10
What does si stand for,when referring to a system of measurement
Answers: 1
question
Physics, 23.06.2019 04:31
Abowling ball rolls 32 meters in 0.8 seconds what is the average speed in m/s of the bowling ball in m/s
Answers: 2
question
Physics, 23.06.2019 05:40
Whithin which type of system is neither the total mass nor the total energy conserved ? a. open b. connected c. isolated d. closed
Answers: 2
You know the right answer?
A person pulls a bucket of water up from a well with a rope. Assume the initial and final speeds of...
Questions
question
Law, 28.06.2021 17:20
question
Computers and Technology, 28.06.2021 17:20
question
Biology, 28.06.2021 17:20
Questions on the website: 13722363