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An electric elevator with a motor at the top has a multistrand cable weighing 4 lb/ft....
11. Lifting an elevator cable An electric elevator with a motor at the top has a...
11. Lifting an elevator cable An electric elevator with a motor at the top has a multistrand cable weighing 4.5 lb/ft. When the car are out when the car is at the top floor. How much work does the is at the first floor, 180 ft of cable are paid out, and effectively 0ft motor do just lifting the cable when it takes the car from the first Aoor to the top?
9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How much work is done lifting the cable alone? (b) How much work is done lifting the load alone? (c)...
9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How much work is done lifting the cable alone? (b) How much work is done lifting the load alone? (c) Could one conclude that the work done lifting the ca- ble is negligible compared to the work done lifting the load?
9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How...
S. A 200 lb cable is loo ft long and hangs vertically from the top of...
S. A 200 lb cable is loo ft long and hangs vertically from the top of a tall building. How much work is required to lift the cable to the top of the building?
A conical container of radius 6 ft and height 24 ft is filled to a height of 20 ft of a liquid weighing 62.4 lb/ft....
A conical container of radius 6 ft and height 24 ft is filled to a height of 20 ft of a liquid weighing 62.4 lb/ft. How much work will it take to pump the contents to the rim? How much work will it take to pump the liquid to a level of 4 ft above the cone's rim? The amount of work required to pump the liquid to the rim of the tank is ft-lb. (Round to the nearest whole...
using figure 1 and information below find the forces and power needed to move the elevator(lift)....
using figure 1 and information below find the forces and power
needed to move the elevator(lift).
needed answers are:
1 finding the service loads
2 mechanical analysis to the shaft
3 power the motor required to move the system.
Project Introduction The system to be designed is a lifting system (elevator) for people located in a building using an electric drive system. There is one car that needs to be lifted as high as 15 metres. The arrangement of the...
A skyscraper in Manhattan has an elevator that weighs 1000 kg when loaded. The elevator is...
A skyscraper in Manhattan has an elevator that weighs 1000 kg when loaded. The elevator is lifted at a constant rate to 480m above the ground by an electric winch motor. The drum of the winch motor is a solid uniform cylindrical drum in which a steel cable can wrap around it. The mass of the drum is 500 kg and has a diameter of 1 m. It takes the elevator a total of 120 s to get to the...
Pumping a conical tank A right- circular conical tank, point down, with top radius 5 ft...
Pumping a conical tank A right- circular conical tank, point
down, with top radius 5 ft and height 10 ft is filled with a liquid
whose weight-density is 60 lb/ft^ 3 . How much work does it take to
pump the liquid to a point 2 ft above the tank? If the pump is
driven by a motor rated at 275 ft-lb/sec (1/2 hp), , how long will
it take to empty the tank? Must work the integral out by...
A service elevator lifts 300 kg of cargo up to 10 stories (40m). The electric motor...
A service elevator lifts 300 kg of cargo up to 10 stories (40m). The electric motor that supplies the mechanical energy for the lift uses 3000 kilojoules of electrical energy when performing this task within 20 seconds. How much potential energy does the elevator's cargo have at the end of this short ride (J)? How much work (change in mechanical energy) does this elevator system output by doing this task (J)? What is the energy % efficiency of the system?...
4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially empty a...
4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially empty and rain enters the can during a 60-day period. The height of water in the can is modeled by the function S, where S(t) is measured in millimeters and t is measured in days for 0sts 60. The rate at which the height of water is rising in the can is given by S'(t) = 2 sin(0.03t) of the 60-day period?...
2) Find the area of the region enclosed by each group of equations. a) y x, y sin x, b) y x2-2x, y= x+ 4 x 3) A part...
2) Find the area of the region enclosed by each group of equations. a) y x, y sin x, b) y x2-2x, y= x+ 4 x 3) A particle moves along a straight line with a velocity of 5 cm/s and then accelerates at a rate of a(t) t2+2. What is its displacement after 5 seconds of acceleration (acceleration is in cm/s2) 4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially...
11. Lifting an elevator cable An electric elevator with a motor at the top has a multistrand cable weighing 4.5 lb/ft. When the car are out when the car is at the top floor. How much work does the is at the first floor, 180 ft of cable are paid out, and effectively 0ft motor do just lifting the cable when it takes the car from the first Aoor to the top?
9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How much work is done lifting the cable alone? (b) How much work is done lifting the load alone? (c) Could one conclude that the work done lifting the ca- ble is negligible compared to the work done lifting the load?
9. A crane lifts a 2,000 lb load vertically 30 ft with a 1" cable weighing 1.68 lb/ft. (a) How...
S. A 200 lb cable is loo ft long and hangs vertically from the top of a tall building. How much work is required to lift the cable to the top of the building?
A conical container of radius 6 ft and height 24 ft is filled to a height of 20 ft of a liquid weighing 62.4 lb/ft. How much work will it take to pump the contents to the rim? How much work will it take to pump the liquid to a level of 4 ft above the cone's rim? The amount of work required to pump the liquid to the rim of the tank is ft-lb. (Round to the nearest whole...
using figure 1 and information below find the forces and power
needed to move the elevator(lift).
needed answers are:
1 finding the service loads
2 mechanical analysis to the shaft
3 power the motor required to move the system.
Project Introduction The system to be designed is a lifting system (elevator) for people located in a building using an electric drive system. There is one car that needs to be lifted as high as 15 metres. The arrangement of the...
Pumping a conical tank A right- circular conical tank, point
down, with top radius 5 ft and height 10 ft is filled with a liquid
whose weight-density is 60 lb/ft^ 3 . How much work does it take to
pump the liquid to a point 2 ft above the tank? If the pump is
driven by a motor rated at 275 ft-lb/sec (1/2 hp), , how long will
it take to empty the tank? Must work the integral out by...
4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially empty and rain enters the can during a 60-day period. The height of water in the can is modeled by the function S, where S(t) is measured in millimeters and t is measured in days for 0sts 60. The rate at which the height of water is rising in the can is given by S'(t) = 2 sin(0.03t) of the 60-day period?...
2) Find the area of the region enclosed by each group of equations. a) y x, y sin x, b) y x2-2x, y= x+ 4 x 3) A particle moves along a straight line with a velocity of 5 cm/s and then accelerates at a rate of a(t) t2+2. What is its displacement after 5 seconds of acceleration (acceleration is in cm/s2) 4) A cylindrical can (radius 10 millimeters) is used to measure rainfall in Stormville. The can is initially...
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