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An artificial satellite orbiting the earth in very thin atmosphere loses its energy gradually due to small but continuous dissipation against atmospheric resistance. Then explain why its speed increases progressively as it comes closer and closer to the earth.

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As the meteor starts falling towards ground, its potential energy decreases. So, this loss of potential energy appears as increase in kinetic energy and thus, the velocity of meteor increases. But the total energy of the meteor keeps on decreasing due to loss of energy aganist air resistance.
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