Recent content by bubakazouba

ahh, ok. thank you very much :)

if you mean by perfect DC output that it doesn't need any smoothing(like the voltage is constant) I think that there will be no power dissipated by the resistor,because the capacitor is fully charged.is that correct?

Homework Statement http://s13.postimg.org/l780tdg1z/screenshot_33.png it's b ii) Homework Equations none The Attempt at a Solution well, I just drew a capacitor in series with the load, but when I looked for the answer it was written that it has to be in parallel, I just wanted to...

4.12? but why, why isn't it the weight?

4.12? but why, why isn't it the weight?

ok I got a force 4.12N upwards what does that mean?

I feel so stupid right now :'(

what equation?

I don't get it why should I use any equation, isn't it obvious the only force that acts on B is the weight, mg

why should I use it?

what about it?

Homework Statement a light scale pan is attatched to a vertical inextensible sring. The scale-pan carries two masses A and B. The mass of A is 400g and the mass of B is 600g. A rests on top of B, as shown in the diagram. The scale-pan is raised verticaly, using the string with acceleration...

sorry i don't get it, there are two instants {a moment ago, in a moment's time} you said "both times Q is lower than it is now", Q now is lower than Q now?

Homework Statement http://i1269.photobucket.com/albums/jj597/bubakazouba/114d22d10848ac93ac2fcea482ffe527_zpsedb41f24.jpg the other line is a drawing of me trying to trace the wave(but of course its wrong,Im sry try to ignore it) the answer is A Homework Equations My teacher told me that...

it would be.. yea I got it ,I totally forgot about the normal contact force. Thank you very much :)