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A racehorse wins a 2400-meter race in 180 seconds. What was the horse's average speed?β
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Work = force Γ a. work b. energy c. distance d. momentum
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In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will βstickβ to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm
Answers: 1
A racehorse wins a 2400-meter race in 180 seconds. What was the horse's average speed?β...
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