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seems i have also learnt new skills after trying this other method. what happens if you have them complex trusses with like, two of these trusses on top of each other then the line goes through more than 2 other members....

i got 56kN, can anyone verify this. uhm, i did it by looking at all the forces in each joint. would be interesting to know if i got this right, as i just started this a few hours ago, and came here looking to test my skillz

adamb, it is not that there is a misunderstanding of forces and torque, the forces acting on either side of the armature are in the same direction, giving no torque, due to the reversal of the direction of the windings

religion as a scaled up subject I have been told that religion is usually scaled up as a difficult subject. My analysis: Religion is one of the largest courses - most number of people, second after english i believe? due to a high level of spirituality in nsw? or because many catholic...

ok, magnets were fine | N..............| | N..............| therefore there is a south pole in the middle, and makes a nice little magnetic field. 1. the coils were NOT connected to the commutator 2. there was NO power supply 3. the coil was wound around the armature 25 times in...

mars orbit from the diagram, i assumed that mars radius around the sun is about twice that of earth, - i know its not, then using r^3 =kT^2, and comparing the length of the arc that earth travelled, could figure out mars was bout 1/6 the way around from where it started, or 1/(2xsqrt8)

if youve got a photocell? i think thats the one, - thermionic device, ? theres a circuit with a vacuum tube, and a potential difference applied across it, when photons hit the photo sensitive electrode, electrons are emitted, and travel across the vacuum, but the electric field opposes their...

alternate problem ook, how about if the magnet is held under the superconductor? it will fall again, then lenz's law will kick in and suspend it below the superconductor? our teacher is a dick so i when i asked him he pretty much told me that i am an idiot. should also hold it to one side of...

i know how to calculate the pH of HCl etc, but sulfuric acid is diprotic.... cant rememeber exactly what happens, but, after the first ionisation, isnt hso4- an extremely weak base.... conjugate base thing? or does that second H ionise too, to make a nice happy situation.

I know that the syllabus is the blueprint for the questions for the HSC - has to be in syllabus to be asked right? Our teacher taught us something just for trivia, and suggested that we learn it. The next week we had a revision assignment and this was in it, since he has also tested us in...

iunny, are you a smart kid, like really smart? If you are then you will have a good chance of people getting higher scores than you for crap answers. Some teachers think that making you work hard, and not succeed makes you work harder, It made me stop working hard. So just make sure...