Recent content by Jacques

Berkeman, Thanks for your input, I've got it now, I can read the time constant from the decay graph (time where 36.8% is left) and then I can work out the capacitance thanks, again j

Thanks Berkeman, In fact they do give me a chart showing the how the current falls from an arbitary 10 amps to 2 amps in 2.5 miliseconds. the question based on the this asks for the time constant. This question then is followed by the capacitance question. thanks j

Hi, I have been given an assignment question detailing a circuit with a few resistors in as well as a capacitator. Further more the information given was the resitance of the resitors and that the battery had had a potential difference of 9 volts. The question's part a was workign out...

THanks H Just asking as I was discussing it with someone last night who reconed that its an shm calculation. the question does however give that the ball1 is pulled up to 15 cm above the height of ballb, this does not give us the length of the rope but can't the 15cm somehow be used as an...

Me again. In the question above I used a the equation v = sqrt(2as) to get the U of ball1 Is this correct? or should I be using some sort of shm calculation to get the U as the ball is hanging from a rope and thus acting as a pendulum? thanks j

Thanks Hoot,

Sorry, I was unclear on that both balls are haning from ropes ball1 is pulled up keeping the string tight to an elevation of 15 cm above ball2 Thanks j

Hi, I have a physics problem I need to solve which I think is quite straight forward but would appreciate some input on whether I'm going down the right lines Tow metal spheres hanging from the roof one of 10g (ball1) and one of 100g (ball2) ball1 is falling from a height of 15cm...