Recent content by dr_d_is_cool

you could also use electricity to increase the magnetic force on either the back or front of the train to push it forward,,,, but that's a little bit complex

yeh probably should work out fine... but also count the fact that u have 99%... u should do fine

nuclear action happens bewteen all atoms, just not at the scale big enough to cause any effects... and i wasnt aware that a coulomb had anything to do with the H2 molecule

if it involves trig then of course it involves right angles

lol no, I am from australia,,,, but i don't know if ur being sarcastic... every year there is a international science olympiad, it encompasses chemistry, physics and biol. countrys send teams of students to compete... also schools can send individual teams to compete

yeh but Earth's gravity isn't always 9.8 is it? as doc al was saying its just how much you are depressing the spring, so its the force exterted by your weight on the scale caused by gravity,,, i don't think the scale assumes anything

id do the maglev purely because it sounds fun and interesting,,, also it may be possible to explore different topics within that topic... so for me definitely mag lev

agreed. everyone has experienced a different example

i think the question is answered by ethics. ur helping save someone for death/discomfort or watever, so that should make it a little better. and also put urself in his/hers shoes and then rethink, they may not be uninsured by choice, they may be too poor to afford it, and who are we to say that...

no way. blimps will never be common in my opinion. to cumbersome and ugly... large payload but expensive and people are still not as trusting after their not so good track record... well that's my opinion... and in the scheme of life what's that really matter

who cares about Cuba seriously, they are no threat no any nations, they are far to small and far to idealistic to do any damage to anyone. Cubas only good for two things, cigars and cocaine

here is a relatively simple problem that is actually quite helpful and interesting. NOT HOMEWORK, i already have the solution, just a little problem for u guys. a small sphere is released from rest, and, after falling a vertical distance of h, bounces on a smooth plane inclined at an angle...

yes physics does use a lot of math but this does not mean that someone good at math is good at physics. i have a professor at the moment who is teaching me some stuff for the physics/science olympiad in korea and she says that physics isn't maths, maths is just what we use to communicate physics...

this isn't really what id call my good point in physics but i would say that you mite need to use the length of the string for more then just the tension.. set up ur thingo with various lengths of cord and check the differences... this probably didnt help u much but as i said,,, not my good point