Which of the following types of energy can be considered "mechanical" energy? (Select all that apply.)...

Which of the following types of energy can be considered "mechanical" energy? (Select all that apply.)

A.thermal
B.elastic
C.chemical
D.kinetic
E.gravitational

Expert Solution

To solve this problem you have to know about Mechanic energy

Step 1.

Definition: Mechanical energy is energy that is due to the position and movement of a body, therefore, it is the sum of the potential and kinetic energies of a mechanical system. Expresses the ability to possess the bodies with mass do work.

For open systems formed by particles interacting by purely mechanical forces or conservative fields of energy it remains constant over time:

It is important to note that the well defined mechanical energy remains constant if only conservative forces acting on the particles. However, there are examples of particle systems where mechanical energy is not conserved:

Systems of charged particles in motion . In that case the magnetic fields are not derived from a potential and mechanical energy is not conserved as part of the mechanical energy "becomes" in electromagnetic field energy.
Thermodynamic systems experiencing state changes. In these systems the mechanical energy can transform into thermal energy or internal energy. When thermal energy production, in general, there will be dissipation and the system will have experienced a reversible change (though not in all cases ). So in general, these systems can experience even without dissipation reversible changes also will retain the mechanical energy because the only variable is the internal energy conserved .

Step 2.

ANSWER:

According to the above theory are the right options: B, D and E

If you have any question please let me know in the comments

genius_generous answered 3 hours ago

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