(a) How many seconds does it take a 20.0 hp motor to lift a 2200.0 lb elevator a distance of 30.0 ft? (b) What was the average velocity of the elevator? ft/s

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A: See below

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A: The position of a particle is given by the function x= (2t3-9t2+12) m, where t is in s. c) To find…

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Q: A coal power plant consumes 158,377 kg of coal per hour and produces 411 MW of power. If the heat of…

A: Coal consumed by power plant in 1 hour = 158377 kg Power produced = 411 MW Heat of combustion of…

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Q: A 75 kg runner has a speed of 5.45 m/s. What is the runner's kinetic energy?

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A: Given data: The radius of moon ( rm ) = 1737 km The time ( t ) = 28 days

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A: ΔT = T2 - T1 ΔT = 20.1°C - 6.2°C = 13.9°C

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A: The radius of the tires is R = 0.250 m The travelled distance is D = 95,000 km = 95×106 m

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Q: Refraction: You are standing on the edge of a pier, shining a laser pointer into a clear lake. You…

A: See below

Q: A small object is fired from point 0 at the edge of a cliff, with initial velocity components of Voz…

A: The components of velocities are. v0x=60 m/sv0y=135 m/s The tine of flight is 30 s.

Q: = 6. Four capacitors C₁ = 20 µF, C₂: 65 μF, C3= 10 μF, and C4 = 60 μF are connected in series 6-Volt…

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A: Draw the free-body diagram of sled A.

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Q: A light bulb is connected to a wall outlet for 5 minutes and draws an electrical current of 10…

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Q: If a = 10 m, b = 19 m, a = 32°, ß = 69°, and c = a - b, determine the magnitude of c. 18.02 100 a b…

A: Page 1

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