Recent content by ojsimon

Ok sounds a bit to complex for me then, but thanks anyway.

Doesn't the Earth recoil very very slightly?

Hi I'm just trying to understand the mechanics of a trampoline, as i think it will better understand my understanding of mechanics as a whole. This is my model: We have some plastic fabric which we will assume is inelastic. A circular trampoline where we have 30 identical springs which are...

Can no one answer this question?

Yeah thanks a lot that has clarified this point completely. Cheers

From your new sketches it looks like current increases when it is discharging, doesn't this contradict what was previously said. But thanks again for the sketches they make this point really clear. Thanks

Hi Ok so i came across this question which asks you to find the force on electrons in a wire which is moving in a magnetic field, hence the opposite to the direction of the current. I worked out using The right hand rule that the current would be going from point P to Q, which was write...

Ok thanks everyone that has clarified my points i think...

Can no one answer this?

Ok so i am just trying to clarify a few points about capacitor charge, discharge, i was wondering if anyone could help. 1)In charging, am i right in thinking current decreases exponentially, charge increases exponentially, and voltage increases exponentially.? 3) Am i write in thinking in...

Oh yeah, thanks,

Ok so i was wondering if what i am doing is correct, But it gets the wrong minimum point? So my function is y=|x+4| 1) y^2=x+4 2)2y(dy/dx)=1 3)dy/dx = 1/2y 4)dy/dx = 1/2|x+4| I set that 0 and get 0=1/(2(|x+4|)) Am i write in thinking this cannot be solved? or missing something...

Thanks so much, i thought it must be something stupid..

sorry v was meant to be voltage and came from the equation v=wd/q Thanks although i don't quite understand your integral? Thanks

Hi, I am trying to simplify this equation and it won't work using this method, although i can do it using another method, so this method should work too. Could someone please look at my working and tell me where I am going wrong? -t^-1=-2A-(1/2)+1 2A^-(1/2)=t^-1 +1 A^(-1/2)=(t^-1 +1)/2...