in wells
Elevators, cranes, vacuums, and motors of all types, just to name a few.
elevaters
Many things uses a pulley. The Venetian blinds use a pulley to change the direction of force.
no
There are two disadvantages:You will have to pull the rope a long distance to move the load a relatively short distance.There will be more loss of energy to friction with more pulleys.
Yes they do.
It can vary greatly depending on the crane design and size.
ropes can be in pulleys
pulleys
assuming that your question is what jobs are pulleys used for... then the answer is any job that you need to lift something that is heavy. The pulley give a mechanical advantage when used together with other pulleys to apply more force to move the object
When two or more pulleys are used together it is called a compound pulley system.
pulleys are actually still used in elevators, cranes, and car lifts. however, they're used with motors.
The pulley was used by the Romans to move large pieces of equipment and to create buildings. Pulleys were also used in the creation of weapons.
pulleys are used in everyday life in many different situations and mechanisms. This is understandable because pulleys when used and set up correctly can lift or move a weight that is much greater than the force exerted upon the pulley. they are used in crane systems.
Pulleys have a rope that goes over the top of the pulley that is when pulled used to raise what ever you want raised.
Pulleys are used in manual wells for drawing water from wells in a bucket. Drum-style pulleys are found in the rotating brush in an upright vacuum cleaner.
Movable pully
Pulling gears, pulleys and such.
block and tackle
Pulleys are used to lift objects