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What is a form of mechanical energy?

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Mechanical energy is the sum of all the forces acting on or in a system as a result of its chemical state (chemical-potential), relative position (potential) and state of motion (kinetic). Work, or a force acting upon an object, is the use of mechanical energy to affect a system.

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An example of the total mechanical energy of a complex system is the human body. It converts chemical-potential energy in the form of food and drink into potential energy stored in the muscles. This energy can then transform into kinetic energy in order to move its mass around in order to perform work, such as walking or driving.

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  • Q:

    How do I define mechanical energy?

    A:

    Mechanical energy is defined as the energy of an object or system due to its motion or position. It is the sum of the kinetic and potential energy of an object. All moving objects have mechanical energy, whether they are in motion or at a position relative to zero potential energy. For example, a moving truck has mechanical energy because of its motion (i.e. kinetic energy).

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  • Q:

    What are some examples of mechanical energy?

    A:

    Some examples of mechanical energy are a hammer, a bowling ball, a drawn bow and arrow and a moving volleyball. Mechanical energy is defined as the energy an object has either due to its motion or its stored energy of position.

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  • Q:

    What is the principle of conservation of mechanical energy?

    A:

    The principle of the conservation of mechanical energy states that mechanical energy is constant as long as it is in an isolated system and subject only to conservative forces. Mechanical energy itself is the energy that is built up in an object due to the work done on it or due to the position of the object.

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  • Q:

    What is the difference between static and dynamic equilibrium?

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    In physics, equilibrium refers to the state of any object when all forces acting upon it result in zero change of motion for the object. Static equilibrium indicates that the object in question is motionless. Dynamic equilibrium indicates that the object is moving, and will continue to do so unchanged.

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