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mechanical energy |
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mechanical energySum of a system's kinetic energy (KE) and potential energy (PE). Mechanical energy is constant in a system that experiences no dissipative forces such as friction or air resistance. For example, a swinging pendulum that experiences only gravitation has greatest KE and least PE at the lowest point on the path of its swing, where its speed is greatest and its height least. It has least KE and greatest PE at the extremities of its swing, where its speed is zero and its height is greatest. As it moves, energy is continuously passing back and forth between the two forms. Neglecting friction and air resistance, the pendulum's mechanical energy is constant. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Other studies (5,6) have shown similar results, suggesting that elderly adults use excessive hip flexion during the swing phase to increase mechanical energy transfer from the lower body to the upper body. The Energy In Action Series consists of Electromagnetic Energy (141710564X0, Mechanical Energy (1417105682), Energy Resources: Use And Conservation (14171-05658), The Transfer Of Energy (141710-5704), Nuclear Energy (1417105690), Energy: Potential And Kinetic (1417105-666); and Heat and Chemical Energy (1417105674). The mechanical energy released during crystallization of anhydrous phases can be calculated for various pressures from the equation: |
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