Recent content by zexxa

The base equation? ## Z ( \beta, V, N) = \sum_\alpha exp[ -\beta E ] = \sum_\alpha exp [ -\beta \sum_i^N n_i \epsilon ] = \sum_\alpha exp [ -\beta m \epsilon] = \{exp[ -\beta \epsilon ]\}^m = exp [-\beta \epsilon] ^m## The base equation is the first 2 equations, and the rest are the...

Question Form the canoncial partition using the following conditions: 2 N-particles long strands can join each other at the i-th particle to form a double helix chain. Otherwise, the i-th particle of each strand can also be left unattached, leaving the chain "open" An "open" link gives the...

To all those checking out this thread to figure out the solution to this kind of question (like I was), the problem here was that NasuSama multiplied the power by 3600s (the time in an hour). This is unnecessary because the question was posed in KWh, where you're to find how much power is lost...

Your work is correct but you have forgotten to take into account directions. Part (i) has the correct answer, as for part (ii), as @TomHart mentioned, you can't have a negative coefficient of friction. What do you think your mistake is then, and why?

If you have not learned how to integrate you should consider reading up or watching some explanatory videos on YouTube. I suppose that if the question expects to you integrate for your solution you should have been taught it at some point before. But if you do know how to integrate, and your...

Sorry for the late reply, Your graphs are consistent with each other. However I guess the disagreement I had with you at the start could be due to the wordings you presented your question as. You said that you had an air filled cylinder and the piston is free to move, I assumed that the piston...

You're welcome :)

Yes these equations can help to explain how temperature varies with the changes. However you can also look at the isotherms to determine their change over the processes too. Gay-Lussac's and Charles' laws are more than sufficient to see that they P-T and V-T are linearly correlated. So to...

Are you sure your P-V diagram is correct? Isn't the order of events an isobaric expansion -> isochoric expansion? This looks like isochoric -> isobaric if I go from left to right that is. If you want to draw the P-T and T-V diagram, you just need 1 simple equation that I'm pretty sure you have...

Good job! And keep up the good work :)

Yep! That's the reason why you got a 1+ for your result. Now that you know it was in radians, you can easily convert it into degrees and you're done! :)

Hahaha are you sure? Check your work again (or rather the way you presented your answer) Hint: 1-something is correct if you look at it in a different way

The height you should use in the first equation is not the absolute maximum height with respect to the ground, it is with respect to the release, which would be 20m. For the second equation, what's the issue? I suppose you're inputting ##v_0## and solving for alpha on the tangent, sine and...

Not bad! Both methods work perfectly well and you're on the right track. Guess this problem is solved then :)

Yep that's it! Then for the next part of the question to find the angle ##\alpha##, how do you plan to use the information you have at hand to solve it?