What is the application of principle of work and energy

Q: ndicate if WORK IS DONE or NO WORK IS DONE on the following situation. 1. A girl walking up the…

A: Given: indicate if WORK IS DONE or NO WORK IS DONE on the following situation. 1. A girl walking up…

Q: Differentiate between work and power.

A: Work and power are two important concepts of mechanics. Both are scalar quantities.

Q: Work is energy transferred by

A: Work is done on an object when energy is transferred to the object whereas work is done by an object…

Q: A pump is required to lift 800 kg (about 200 gallons) of water per minute from a well 10 meters deep…

A: Power= (force× distance)/time P = mgh/t 1HP = 745.7 watt Potential energy = mgh Where, m = mass h =…

Q: The unit of work is a combination of the units of   A force and displacement   B force and…

A:

Q: Determine the value of work done if force applied on crate is 13 N displace the object by 2 m

A: If we apply a force F on an object and for which the object will displace by an amount x, then the…

Q: What is the significance of Energy, Work and Power in the modern society? Why is it important that…

A: Work, energy and power are significant physical quantities in physics as well as in modern society.…

Q: what is the relation of Force, work, work-energy relation, and power

A: Force=mass.gravity Work =force.displacement            =force.(final position -initial position)…

Q: How do i calculate work done by frictional force

A: The work done by a force is equal to the scalar dot product of the force and the displacement of the…

Q: What can you say about this picture?

A: Given: from the given diagram. The applied force is F. The displacement of the object is D. The…

Q: Find the work done if force applied of 10 N on object but object does not move

A: Given data : Displacement is represented by d Force is represented by F   To find : Work done

Q: A 2.9 kg bucket of water is lifted vertically 1 m How much work against gravity is done? Use g = 9.8…

A: Given : m = 2.9 kg h = 1 m g = 9.8 m/s2

Q: a bulldozer performs 80000 n-m of work pushing dirt a distance of 16m what is the fore of the dirt

A: Given:W=80000N⋅m (work done),Distance=16m (distance pushed),The work done (W) can be calculated…

Q: If the total work done on an object is positive. -its potential energy will increase -its kinetic…

A: Work done is the scalar product of force and displacement. A moving object possesses kinetic energy…

Q: An object weighing 20 kg is raised through a height of 2 m. What will be the work done by the force…

A: mass = 2 kg height = 2m if the value of g = 10 m/s2

Q: Example of mechanical energy

A: Mechanical Energy :-also known as motion energy is the  energy of an object due to its motion or…

Q: Distinguish between external work and internal work.

A: Work done can be defined as the product of the force and the displacement.

Q: According to the work-energy theorem, the amount of net work done on an object is equal to the…

A: If v is the final velocity, u is the initial velocity, s is the distance travelled and a is…

Q: Find the work done if force applied of 10 N on object but object does not move

A: Given data : Force, F = 10 N Displacement, d = 0m  ( Since, the object is not moving)

Q: Potential energy is said to be "stored" energy. True False

A: True / False : "Potential energy is said to be stored energy"

Q: What is the difference between energy conservation and the law of conservation of energy? Give some…

A: Energy conservation and law of conservation of energy

Q: A 80.0 kg mail bag hangs by a vertical rope 3.5 m long. A postal worker then displaces the bag to a…

A:

Q: How much work was done if an objects kinetic energy changes from 35 J to 15 J? A) -20 J B) 20 J C)…

A: Given,  Initial KE =35J Final KE=15 J

Q: Q4:- Show that the net work done on an object equals the change in kinetic energy of the object?

A:

Q: How much work would a child do while pulling a wagon a distance of 4.7 m with a 28 N force?

A: The given data are: d=4.7 mF=28 N Heere, d , and F represent the distance and force.

Q: Joule is a unit of the following: work, power, potential energy, and kinetic energy, true or false?

A: Work: Work = Force ×Displacement      W = F ×S Units of work:    1 J = 1 N m   Power: Power = Work…

Q: Which of these energies could be negative? Kinetic Energy Potential Energy Work None of the above…

A: Given that :- Detail explanation of these energies shown below.