Thanks for the replies! I was having problems with looking at everything relative, because of course if you put a carboxyl group in water, it will make a low pH. What i did not understand is that a pH of 7 has so many hydroxyl groups to completely deprotonate the acid. So yeah it had to do with...
Can someone explain to me why the carboxylic acid group and the amino group both have charges on them in neutral water? The pKa for carboxylic acid is around 2-5 depending on its enviroment. I am confused that a pKa of 2.3 would give a ratio of 80000 deprotonated to 1 protonated? If the acid has...
thank you for all the good replies
One thing to mention about that picture, I believe the racer in that photo was "prejumping", or hitting a bump on the face of the jump to rocket into the air before the peak therefore giving him time to maneuver his bike to that position.
This is a...
yea, the motorcycles weigh aproximately 93 kg with engine sizes 250cc and 450cc. The top speed on a smooth surface is around 55mph, not sure of average speed on a race track. l own a 250cc bike and it pulls my 165lb's around with no problem. The bikes rpm's go to around 13000rpm
It seems that air resistance would be increased by going sideways. I wonder if the air resistance offsets the benefit of distance instead of height compared with the lower center of gravity. Thanks for the replies.
Motocross has seen a rise in the number of racers who "scrub" their speed, or whip the motorcycle to the side. They claim that whipping the bike sideways off the jump lowers the hangtime so they can get back down to accelerate, therefore having a faster lap time. It is also claimed that sliding...
Hello everyone! My brother is having a science fair coming up. He is doing it over superconductors. We have the Meissner effect down just fine, but I have this idea to pass a current through the ceramic in its superconducting state. We want to show the difference in brightness of a little...