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1.An elevator is able to raise 9,800 N to a height of45m in20s. a.How much work does the elevator do? b.What is the elevator's power

1.An elevator is able to raise 9,800 N to a height of45m in20s.

a.How much work does the elevator do?

b.What is the elevator's power output?

2.It takes140minutes for a middle-aged physics professor to ride his bicycle up the road to Alpe d'Huez in France. The vertical height of the climb is1,120 m,and the combined mass of the rider and bicycle is66kg.What is the bicyclist's average power output?

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