define mechanical energy?
153070
The short answer is that mechanical energy involves motion of a mechanism as opposed to electrical, chemical, nuclear, heat, and light energy, etc.  As such, it exists in two forms; potential and kinetic energy.  Potential energy is energy of position.  For example, it takes mechanical energy to lift a 100 pound weight one foot (100 ft-lbs of energy) and the system can give up the same amount of energy (less friction) returning to its original position.  Compressing a spring or even gas in a cylinder can also store potential energy that can be returned.  Kinetic energy is energy of motion (1/2mv**2 i.e., one half the mass times the velocity squared).  Energy (including mechanical energy) can be converted to other forms.  For example if you lift one pound of water 778 feet (778 ft-lbs), its potential energy can be converted by dropping it back to ground.  Before release it has maximum potential energy and minimum kinetic energy.  Just before it splatters, it has minimum potential energy and maximum kinetic energy.  Upon splattering, the kinetic energy of the whole mass is converted to kinetic energy of the molecules and the mass heats up one degree F.  Kinetic energy oof motion can also be stored in a rotating flywheel.
43971
Da_vinci's answer is partly correct but it confuses force, power and energy. Energy is the integral of power over time, or more simply, if power is constant, energy is power * time. Kinetic energy can also be expressed as .5*M*V^2, M being mass and V being velocity.\nDa_vinci's example illustrates that since velocity is measured with respect to some reference, so is kinetic energy. Without a reference an accelerated object receives a velocity change but the kinetic energy change cannot be defined. Similarly, without a reference, decelerating the object requires application of a force but does not recover any energy.
859502
What you are likely looking is W=F*D \n\nWork = A Force * A Distance\n\nCheck out wikipedia for additional help:\nhttp://en.wikipedia.org/wiki/Mechanical_work
230115
Magnetic energy is the energy associated with a magnetic field. Energy can be stored (like energy stored in a stretched rubber band.) The energy stored in a magnetic field is called magnetic energy. It is produced by the flow of an electric current through an inductor (like a coiled wire). It can be used to do work.
211921
Potential energy is the energy by virtue of its position.\nAny object which is far away from the center ofpossessingf nothing prevents it will move towards the center of earth. A spring wound fully  or partially. If left alone and it will rewind to its normal position.A  vessel containing gas under high pressure.If there is a vent the pressure will drop to normal.A string under tension. All thesrelievedamples of potential energy. These energies will be releived from the object when  there is proper way. \n\nKinetic energy is the energy by virtue of its motion. Any object moving in other words having velocity is possesing kinetic energy.If the velocity is reduced by some external agency the latter gets energy and viceversa.
768384
because a car turns heat energy into mechanical energy
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Thermal energy is kinetic energy due to disordered motions and vibrations of microscopic particles such as molecules and atoms.
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The potential energy of a system is the energy which was spent to constitute the system from bringing its constituents closer\nto each other against the forces among them and this energy is stored in the syetem. The same way the interatomic energy is \nthe enrgy which was spent to bring the atoms closer against the vanderwaal forces.
36280
Assuming it can't be II and III, I would say it's all of the above. The potential energy is converted into kinetic - the velocity increases and the height decreases. The KE + PE remains constant, because there is no work being done because there is no force here (besides gravity). However, the first depends on how you define mechanical energy - if it's kinetic energy, it's true. If not, I really don't know what it is.
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Energy. It moves and moves and moves till it smashes a body and turns into a pure energy form and loses it's mass.
575202
heat is a form of energy.
674000
mechanical or electronic?
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Every mass in motion is said to have mechanical energy.\nHowever a mass is also structure ed with atoms wich are also moving with mechanical energy. The is the energy of the structure. You can represent it a the total mass  time velocity of light squard. Usally in the motion of masses the mass changes are very small. Hence you can consider mass as a constant. The mass time the final velocity squared of the moving mass is the mecahnical energy of maas in motion. assuming there is no friction. if there is friction you must substract the energy loss due to friction.
1058239
Yeah, force is just energy applied on a particle. Force per time is power.
519547
Most likely Energy in Joules. We need a context though.
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Energy stored in a body (such as a spring) whose particles have been displaced from their equilibrium positions.
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Kinetic energy.\n\nGreek kntikos, from kntos, moving, from knein, to move.