Recent content by smalls

hi,could some one please help me to understand how to find the density of water using a specific gravity bottle?and also a solid material..:cry: many thanks.

Homework Statement a shunting locomotive strikes a wagon of mass 8t and sets it in motion with an initial speed of 3.6m/s.The wagon travels freely along a level track against a track resistance of 58N/t for 12s.determine; a.the frictional resistance(average force) b.the reduced velocity...

so i got this question; -4P1 + 6P2 =54 5P1 + 4P2=48 and my answer has to be to 3 decimal places.i got abit cofused at a point.but i have worked it out though..it got P1= -1.565 and P2= -13.956... just need some one who's really good at this to double check it for me..if its wrong,then...

thank you very much..i some how understand it more now..but you see,the problem is we havnt been thought the KVL rule aswell...but to due to a research I made,i understand summing all the voltages =0>am I right?:)

please i am a beginner and i do not understand anything you just said.this is not something like an exam.its just an exercise we were ask to try hands on.so all i want is for someone to take me through it step by step and explain to me..that's all i am asking for please...thank you

so what i did was wrong i guess..:'(...really confused now.because they was i have started was the way we have been tought and i have been watching videos on how to go about it and still don't get it..

The thing is,this is a whole new topic to us and we were only given 2 examples and we were given this to do.and those examples were only with 2loops

like this?

Homework Statement Homework Equations hello,i have started working on it and i got the first 2loops.i just want to make sure i am on the right path before i continue to find the third loop.which i think i'm..so please,can anybody help me out here?pleas The Attempt at a Solution...