false
A hob is a shelf at the side or back of a fireplace.
Bookshelf.
A hob.
empty bookshelf
Help me find that out
no, but the POTENTIAL energy may equal the work done to life the book to the shelf
no
A book on the bottom shelf usually has more kinetic energy because it has the potential to fall from a greater height than a book on the top shelf. As an object falls, its potential energy is converted to kinetic energy.
Kinetic Energy
When a book is falling from a bookshelf, it is in a state of kinetic energy because it is in motion. Potential energy arises when the book is stationary on the shelf due to its height above the ground.
When a book falls off a shelf and hits the ground, its potential energy is converted to kinetic energy as it falls. When it hits the ground, some of the kinetic energy is converted into sound and heat energy due to the impact.
Yes, the hatbox on the top shelf of the closet possesses potential energy due to its position above the ground. This potential energy can be converted into kinetic energy if the hatbox falls from the shelf.
The total mechanical energy of the book falling off the shelf is the sum of its potential energy and kinetic energy. Therefore, the total mechanical energy is 110 J (50 J potential energy + 60 J kinetic energy).
When a box is picked up and placed on a shelf, the main types of energy involved are mechanical energy (kinetic energy when the box is being lifted and potential energy when it is placed on the shelf) and gravitational potential energy (due to its position in the Earth's gravitational field). Heat energy may also be generated due to friction between the box and the person picking it up or the shelf.
Gravitational Potential Energy, also known as GPE.
Before it falls it has gravitational potential energy. While it falls, the potential energy gets converted to kinetic energy. Part of this gets dissipated by friction - mainly converted to heat. Once it hits the ground, all the energy will be converted to heat.
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.