hmmm. well what i can't figure out is why the wheel spins the opposite direction. The way i was gunna prove this to myself was through a free body diagram. but when i draw it the forces i get don't make sense. Just considering hte forces between the ruler and the big wheele, i get the...
Anyone know why the big wheele spins counter clockwise in thsi video?
Can anyone draw me a free body diagram of what's going on when the ruler is pulled to the right?
thankyou
So i have multiple teachers giving me different answers to this question.
A block of mass (m) is initially sliding up a ramp at an incline of (Theta) at an initial speed (V0). The coefficient of kinetic friction between the ramp and block is (Uk), and and the coefficient of static...
o yes. thankyou. our teacher made that point in class as well. I use a differnt symbol, but they have the same purpose.
i'm sorry but i still don't understand how to solve this equation. All of these hints are helping me get a little closer...but i still don't get it. Like, i have no...
its a circle. how does putting the equation like that help me find the tangent line
my friend "guessed" a point where the circle looks like it starts to curve away from teh origin, and then used that to solve for the tangent line, and he seems to have gotten the right answer, but we can't...
I am looking for a tangent line that goes through the equation. the question i gave is all that is in the question. Only poing i think we know is that th eline goes through 0,0
exact question
Find equations for two lines thorugh the origin that are tangent to the curve x^2 - 4x +y^2 + 3...
I can't get the problem. can anyone help me please.
-Find equations for two lines thorugh the origin that are tangent to the curve x^2 - 4x +y^2 + 3 = 0.
I found dy/dx=(-x+2)/y and put thta into the point slope equation, and then filled in (0,0) for the point, but couldn't get an...
well if the wood sucks the heat faster, then shouldn't it make your hand colder faster...but this is not true. The metal feels colder, meaning that its specific heat is high, and the woods is low.
right? is that what your saying
how can a metal suck heat from you faster...your body should give off heat just as fast to all objects...right? and that doesn't even have to do with specific heat
Yes. i know an object with a higher specific heat takes more energy to raise its temperature. So, if the tile has a lower specific heat (which is what he said) then when you step on it, the temperature should raise faster than when you step on the carpet. But when you step on the carpet, it...
I disagreed to the responce my teacher gave to this question
"Why does a metal door knob feel colder that a wooden one on a cold day?"
He said it was because the metal one has a lower specific heat, and the wooden one has a higher specific heat. He gave the example of tile and carpet on...
ok thanks.
You mentioned free energy. I looked through my textbook, and it defines it as, G= H- TS, but never tells what gree energy (gibbs free energy) is, or what its good for.
i was looking online, and it said that gibbs free energy ALWAYS increases, but can't gibbs energy be...
Maybe whast confusing me is what is considered to be more disordered.
In order to determine if something is disordered, then there has to be a standard of what is considered ordered...
so what is ordered?
If you take a can filled with air, and heat it up 10 degrees more than it was 9lets say it started at 25 degrees celcius, the entropy is increased right...because the process was spontaneous.
now what if you decrease the temperatue 10 degree, then the entropy is decreased right? is the...