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If you lift a 20 N book to a height of 0.5m how much potential energy does the book have?
Aiby123
P.E=m*g*h m=mass, g=acc due to gravity, h=height =(mg)*h =(F)*h=20*0.5=10J
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∙ 14y ago
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How can doing work on an object increase it's kinetic energy?
I lift a book from the floor and place it on my desk.The amount of work I do on the book is the amount by whichits gravitational potential energy has increased . . .M G Hwhere 'M' = mass of the book, 'G' = acceleration of gravity, 'H' = height of the table above the floor.By the way, when I increased the energy of the book, I also increased its mass. The change in mass isdM = dE / c2
Where is potential energy the highest on a roller coaster?
When the roller coaster is at its highest position and is not moving then its potential energy is highest
How much potential energy does it take to lift 10 kg of wood 1.5 m to a mans shoulder?
PE=mgh m=mass g=gravity h= height 10x1.5x9.81=147.15 Joules
If a raised object has potential energy does it have more if you lift it higher?
Yes. The potential energy of an object is E=mgh where m=mass, g=acceleration of gravity (9.8 m/s^2) and h is the height of an object above a reference point. So, if two objects (on the same planet) have the same mass, the one that is higher will have the larger potential energy. Another way to think of this is that in lifting an object higher you do work on that object. That work is converted into it's potential energy. Whenever you do work you change the energy of the object.
Where on a roller coaster is potential energy at the highest?
Potential energy is highest at the dead top of the highest point on the roller coaster. It is lowest at the lowest point. Kinetic energy (motion energy) is highest at the point where the velocity is highest. This depends on the design. A good guess is dead bottom of the longest fall, but on a complex coaster ride there are other possibilities. Also, air resistance and friction can change this.
What energy of a book on a shelf is equal to the work done to lift the book to the shelf?
The potential energy of the book on the shelf is equal to the work done to lift the book to the shelf. This is because the potential energy of an object at a certain height is equivalent to the work done against gravity to lift it to that height.
As you lift a book into the air what kind of energy are you increasing in the book?
You are increasing the book's gravitational potential energy as you lift it higher against the force of gravity.
When does an object have gravitational potential energy?
Well gravitational potential energy is potential energy that depends on the height of an object so an object would have gravitational potential energy when ever it's of the ground or at a high height (it doesn't have to be very high) for example if you lift up a ball it has the potential to fall or if your climbing a mountain you have gravitational potential energy.
How does height affect the PE?
Energy can neither be created nor be destroyed. When we lift certain thing to a certain height we have to done some work on it . This energy is stored in the form of potential energy. Potential energy = mass * acceleration due to gravity * Height of object from ground. As height increases PE increases.
How is work related to gravitational potential energy?
As we lift a body of mass m from ground level to a height h, then work performed will be mgh which is equal to the difference in gravitational potential energy at the ground level and at that height.
The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf?
no, but the POTENTIAL energy may equal the work done to life the book to the shelf
What is the relationship between the work done to lift a book to place it on a bookshelf and the potential energy of the book on the shelf?
There is no direct relationship because the potential energy of the book on the shelf is defined relative to an arbitrary base line at which the potential energy would be zero. The work done in raising the book is the increase in the potential energy of book from however much PE it had in its previous location - for example, on a lower shelf.
When you lift an object energy is transferred to an object which gives the object?
When you lift an object, the energy transferred to the object is called gravitational potential energy.
What is the formmula for potenial energy?
There are different types of potential energy; in general, you have to use the definition of work = force x distance. Thus, in the case of gravitational potential energy, the work required to lift something (that is, the potential energy) is weight x height. In the more general case, in which the force is not constant, integrals have to be used.
How much work is required to lift a 4.8 kg concrete block to a height of 1.7 m?
Use the formula for gravitational potential energy (mgh).
When you lift an object energy is transferred to the which gives the object?
Potential energy
What formula is used to find the amount of energy needed to lift a box?
Most of the energy related to lifting something up is related to gravitational potential energy, so you basically use the formula for gravitational potential energy: GPE = mgh (mass x gravity x height)
