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(a) Find the useful power output (in W) of an elevator motor that lifts a 2300 kg load a height of 25.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg-so that only 2300 kg is raised in height, but the full 10,000 kg is accelerated. (Enter a number.) 210833.33 (b) What does it cost (in cents), if electricity is $0.0900 per kW · h? (Enter a number.) 1897.5 X cents

(a) Find the useful power output (in W) of an elevator motor that lifts a 2300 kg load a height of 25.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg-so that only 2300 kg is raised in height, but the full 10,000 kg is accelerated. (Enter a number.) 210833.33 (b) What does it cost (in cents), if electricity is $0.0900 per kW · h? (Enter a number.) 1897.5 X cents

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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(a) Find the useful power output (in W) of an elevator motor that lifts a 2300 kg load a height of 25.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg-so that only 2300 kg is raised in height, but the full 10,000 kg is accelerated. (Enter a number.) 210833.33 X W (b) What does it cost (in cents), if electricity is $0.0900 per kW · h? (Enter a number.) 1897.5 cents
Transcribed Image Text:(a) Find the useful power output (in W) of an elevator motor that lifts a 2300 kg load a height of 25.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg-so that only 2300 kg is raised in height, but the full 10,000 kg is accelerated. (Enter a number.) 210833.33 X W (b) What does it cost (in cents), if electricity is $0.0900 per kW · h? (Enter a number.) 1897.5 cents
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