Hi- have a water pipe that leaked into our cellar - the pipe is cut (to replace the bad section) we have the water shut off at the house - and a pressure valve released - there is STILL water dribbling out of the pipe - is there any quicker way to completely empty the pipes?
P.D current *resistance. Since the two metals are in series current through both is the same . R of steel rod ρ L /A 2e-7* 2.5/ (π 0.0075?) P.D across steel 1.48e4*2e-7* 2.5/ (π 0.0075?) 41.9 V P.D across copper wire 1.48e4*1.72e-8*39/(π 0.004?) 197.5 V energy deposited in the rod VIt 41.9* 1.48e4*66e-6 40.9 J energy deposited in the wire 197.5*1.48e4*66e-6 192.9I
Wow, lots of cool answers here. I chose to answer this Q of yours because I do have so little time for Y!A now but I find it refreshing. I have to agree with Gentleman and those others who said it is often the lonely or bored that get on here. I felt so isolated before I started Uni/Work. I did sometimes feel a bit guilty spending so much time here, but in truth, the reason for it is that I felt so isolated. Our culture became very isolating and the Net begins to fill the need for community a little. It also serves as a great learning ground. We take education for granted, and we learn so much from the Net that we hardly take the time to imagine how powerless we would be without it. I am working towards creating a communal, local life, where the people are much more involved with each other. My own parents are gone (Dad died, Mum is absent - inlaws both work) and I found raising my own children extremely difficult without their help and advice. Little bit by little bit I'm trying to change society so that there is more meaningful interactions between people on an every day basis. I can't do everything, but I can do a little to help Well, I gotta go and change a very stinky nappy (diaper). Bye!
