Question

i am studying for a final and stuck on some questions hope someone can help. What is the mechanical advantage of a pulley? .For two electrons (much smaller than the distance between them), which two statements are correct?

Answer 1

@jannine245 please clarify (:

Answer 2

which one

Answer 3

Im confused on your question...

Answer 4

What is the mechanical advantage of a pulley?

Answer 5

does it act like a lever so that it can multiply force by changing the distance an object is moved or can multiply the work energy so that the energy output is greater than the energy input

Answer 6

http://library.thinkquest.org/CR0210120/MA%20of%20PS.html
This may help:)

Answer 7

For two electrons (much smaller than the distance between them), which two statements are correct is it if the separation of the electrons is increased, the electrical and gravitational forces between the objects decrease by different factors or if the separation of the electrons is increased, the electrical and gravitational forces between the objects each decrease by the same factor.

Answer 8

A pulley system creates mechanical advantage by dividing force over a length of rope or its equivalent, that is greater in length than the maximum distance the load can travel by using the pulley system. Through the use of movable pulleys or their equivalent, a system creates a mechanical advantage through the even division of force over multiple rope strands of a continuous rope. <----- first one

I thnk it would be the second one..

Answer 9

but u r not sure

Answer 10

not positive, tag ppl if u need help(:
@Falco276 @rulnick @Ashleyisakitty
May be able to help (:

Answer 11

Firstly, the purpose of the pulley is to decrease friction when redirecting the pull/force of a rope, chain, or some equivalent thing, so basically it makes anything you need to lift lighter.

Secondly, you are insisting that we pick two of the multiple choice answers but yet you dont include what the choices are..

Answer 12

I have no answers I am placing what I think is correct since I am a bit older..

Answer 13

Okay, so you dont need help with the "for two electrons (much smaller than the distance between them), which two statements are correct?" part?

Answer 14

i wrote the statements as my answer are they right i am not sure which is why i am asking..