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Sedaia [141]
3 years ago
9

In a real machine, the work output is always less than the work input. a. True b. False

Physics
1 answer:
Artist 52 [7]3 years ago
4 0
<span>In a real machine, the work output is always less than the work input is true. The answer is letter A. it follows the law of entropy where no energy can be converted completely into work. Under this law, Carnot’s theorem states that Carnot’s engine can perform 100% of work. However, no such engine has ever succeeded the conversion of work into 100%. The greatest efficiency so far is at 80%.  Because there will always be factors that could affect the conversion of work. </span>
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Discribe the law of reflection
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Answer:

the angle of reflection equals the angle of incidence—θr = θi. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface.

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Using Earth as an observer, the Velocity for the Patrolman is:

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Object's Velocity = 75 mph

3 0
3 years ago
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