mathuser4891
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 Aug 1 awarded Yearling Jun 19 revised Simulation of physics of chains/ropes in force fields resources? added statement of authorship Jun 19 answered Is there a general form for heat capacity? Jun 19 comment What is the deal with heat capacity? By the way, I have just learned that when one references a paper of which one is an author (which is the case here), one should declare this fact. Jun 19 comment What is the deal with heat capacity? @DepeHb In order to derive all thermodynamical quantities you need more information than just temperature as a function of pressure and volume. Normally, the additional equation gives entropy, also as a function of these variables although knowledge of the adiabats suffices (as a concrete example, for the ideal gas these are the well-known curves $pV^\gamma=constant$). Jun 18 revised What is the deal with heat capacity? more typos Jun 18 answered What is the deal with heat capacity? Jun 18 comment A change in the gravitational law Not a direct answer but might be of interest. There are three cases of a central power law where all the orbits can be written down explicitly using elementary functions---inverse square, direct proportionality (Hooke's law) and the $\frac 1{r^3}$ of your question. In the latter case, the orbits are the so-called Cotes' spirals about which the internet is full of information. By the way, all three were known to Newton and are dealt with in his "Principia". May 23 answered Physical interpretation of changing variables $S(T,V)$ to $S(T,p)$ Apr 26 answered How is it possible to equate the internal energy at constant volume with the internal energy of an adiabatic process? Apr 15 awarded Revival Mar 31 awarded Enthusiast Mar 19 revised A formal procedure for thermodynamic relations small typo Mar 19 revised A formal procedure for thermodynamic relations replied to Nick's request for more details Mar 14 answered Generalised Kepler's III law? Mar 11 comment A formal procedure for thermodynamic relations I might add that I have illustrated this method in answers to the following queries on this forum if you are looking for examples: 23644, 21965, 46759, 20843, 51683, 47841, 18510. Mar 11 answered A formal procedure for thermodynamic relations Mar 3 revised What does third law of thermodynamics tell us? added definition of J. Mar 3 answered What does third law of thermodynamics tell us? Mar 2 answered Condition for closed orbit