Recent content by prettyinpink

i figured it out

Help needed I am stuck on the same problem. I tryed B=muI/2pir. I used the one where we have all the infromation except for the I. I then used this I and put into a new equation to slove for r. I just thought it was smiple subistion. Because for you you don't have the I and for the other you...

2k and 1/2x ...F= 2k 1/2x in comparison to the 100 coils so that would be for the 50 coils...I am still confused on what to do with the distance

How did u even get part a? F=? K=315

Recall that the spring constant is inversely proportional to the number of coils in the spring, or that shorter springs equate to stiffer springs. An object is attached to the lower end of a 100-coil spring that is hanging from the ceiling. The spring stretches by 0.170 m. The spring is then cut...

Hey I am confused on a question like this too! I had no clue how to even start?...

never mind...i sloved it

I know there has to be an x and y direction but i don't know what angles to use and wether you add or subtract the numbers.

Yes I still need help with the equations I don't understand how to write the forces in an equation. The equations that were given from above produced a negative answer and I did check my work.

no go the equations weren't right anyway and i still have no idea how to write the equations...

i certainly will try the equations out today thxs much!

Do a balance of forces, both horizontal and vertical. Then do a balance of moments (or torques). (from post) ? confused

I don't understand which forces to use to find the tension and how to use and equation to find the tension

thxs thxs ill check that out any idea on the seconde problem

Sorry about that I thought I did use the homework thread. For the first problem I did WI=I1W1+I2W2 and so with the number is would look like this (120)(.5)=(120+m0.740 squared)(.640) ...i know I is mrsquared. For the seconde I drew all the forces as included in the link above when someone else...