Recent content by babbagee

I am doing a project for my thermodynamics class and I have decided to do it on Endoreversible Thermodynamics. I Have read a few articles but I am having some difficulty understanding parts of it. I have not read the whole article, still in the beginning. But from the intro are they saying that...

Hello, I just need help deriving the fundamental equation from Equation of state for wan der waals fluids. P=\frac{RT}{v-b}-\frac{a}{v^2} and u=cRT-\frac{a}{v} where a,b, and c are constants. I know the fundamental equation is dS=\frac{1}{T}dU+\frac{P}{T}dvI solved the u equation so it's...

Homework Statement Show that the molecular speed probability distribution is normalizedHomework Equations Molecular speed probability distribution P(C)dC = 4pi[m/2pikt]3/2exp[-mC2/2kT]C2dC The Attempt at a Solution I have tried many steps but i keep getting stuck. I tried using the same metods...

Homework Statement Consider a two level system where the ground state is doubly degenerate and the exited state of energy E is four fold degenerate. Write down the partition function and mathematical expressions for the populations of the two levels. Homework Equations z=e-E/kt ni =...

yeah, and i got an answer that did not seem right. I used the equation to find the final velocity of the block after it was hit by the ball. The velocity of the ball will -5m/s right after it hits the block because this is an elastic collision, or is that wrong. But any ways use the kenitic...

yeah i forgot its elastic, so the ball bounces back off. But how will i go about finding the angle.

Ok here is the problem A ball with mass M moving horizontally at 5.00 m/s, collides elastically with a block with mass 3M that is initially hanging at rest from the ceiling on the end of a 50.0-cm wire. Find the maximum angle through which the block swings after it is hit. Ok what i...

You are asked to design a spring that will give a 1160 kg satellite a speed of 2.85 m/s relative to an orbiting space shuttle. Your spring is to give the satellite a maximum acceleration of 5.00g. The spring's mass, the recoil kinetic energy of the shuttle, and changes in gravitational potential...

masteringphysics.com

Yes you are right, i for got to take the x-component into consideration. I was just giving the y-component of velocity. Thanks

But i am assuming that the point where he threw the ball is the origin, and the the distance below is -22.1m.

I just wanted some one to check over my answer because i am doing my homework online and it keeps telling that my answer is close, and that i have made a rounding error or used the wrong sig figs. The problem is A baseball is thrown from the roof of a building of height 22.1 m with an...

Using work to find The amount of... The Grand Coulee Dam is 1270 m long and 170 m high. The electrical power output from generators at its base is approximately 2010 MW. How many cubic meters of water must flow from the top of the dam per second to produce this amount of power if 91.0 % of...

Topoisomerase is a enzyme that uncoils DNA during replication and Transcription. I understand that much, but how does it go about uncoilng the DNA. My teacher was talking about how super coils form when the DNA unwinds and Topoisomerase cuts the DNA to relax the DNA. But he went into a lot of...

Three block, connecting ropes, and a light frictionless pully comprise a system, as shown. An external force P is applied downward on block A. The system accelerates at the rate of 2.5m/s2. The tension in the rope connecting block B and block C equals 60 N. I don't have a picture but ill...