The specific gravity of a substance(brass in your case) is the ration of its density to the density of water at 4 degrees C, which is 1.0 x 10^3 Kg/m^3. (the size of the kilogram was originally defined to make the density of water 1.0 x 10^3 Kg/m^3 at 4 degrees C). By definition specific...
Is it all really this simple...?! I understand everything you've all been saying...it obviously all makes sense...I just can't believe this is so simple...I guess I'm just stressing because these extra credit points are all that separate me from getting an "A" in class.
Well, I'm going to...
you feel no "weight" in space because you can only find the weight of an object when gravity is present. Weight is not a constant figure...the higher you climb in altitude the less you will "weigh". So you feel no Weight" in space because weight does not exist without the forces of gravity...
russ_watters...Again I UNDERSTAND THE MATH, AGAIN, I NO LONGER CARE ABOUT EQUATIONS AND CALCULATIONS. THIS IS NOT A MATHEMATICAL PROBLEM.
I'M LOOKING FOR AN EXPLANATION USING ONLY THE LAWS OF PHYSICS. THERE MUST BE A WAY TO EXPLAIN THIS PROBLEM BY ONLY TALKING ABOUT CONCEPTS.
ALSO...
Ok, this question is fairly simple...lets see if I can make any sense when I try to explain it. Ok, so the bullet and the glass is only one example, don't get tripped up on this because it's a complicated example. Try this one,
try kicking a football with your bare foot...what happens...
I'm trying to figure out how the LAWS of physics, like the ones I talked about above(and there's probably several others) effect a plane so that it would require 70% takeoff speed by the time it gets halfway down the runway...I know there has to be a reason somewhere...all the flight info I've...
Yes, cliff that does help a bit with the overall picture of the problem, but the time, velocity, acceleration, and distance all correlate in one way or another. So they can all be accounted for mathematically. Yes it always helps to view a problem in three dimensions...I really appreciate the...
I think you should just go ahead and download the book, then with the knowledge you gain from it you could devise a worm hole to transport yourself directly to serway's home where you could pay him in person...thus saving on shipping costs.
you should use a lawn-mower engine to power your craft, design the rest of the craft around that...such as size of propeller, and weight. I suggest a lawn-mower engine based purely on the fact that it'd probably provide enough power for you to sit on your hovercraft...and that'd be rad.
Ok, I asked this question a few days ago. I'm writing this to try to clear up some of the confusion about what it is I'm trying to figure out.
I read in a flight magazine that in order for a plane to be able to clear the runway during take-off, a plane will need to have 70 percent of its...
Ok, I understand the math behind this question: 10*the square root of the percentage of liftoff distance required is equal to the percentage of lift-off speed that should be attained in that distance. EXAMPLE:
√50=7.07=
10*√50=70.7
So since I want to know what speed a plane needs to achieve...
Ok, I understand the math behind this question: 10*the square root of the percentage of liftoff distance required is equal to the percentage of lift-off speed that should be attained in that distance. EXAMPLE:
√50=7.07=
10*√50=70.7
So since I want to know what speed a plane needs to achieve...