Talk:First law of thermodynamics

Re: "It is however a problem from an evolutionary perspective, since it need Energy to naturally come from some place. The Evolutionist solution is to invoke negative energy with the idea the they add up to 0 energy"

No, the solution from an evolutionary perspective is to invoke the sun. From a cosmological perspective, relating to the origin of the universe rather than the origin of species, you may be correct. But this has nothing to do with evolution.

Roy 11:18, 22 Mar 2005 (GMT)

Mathematical formula of Work

The mathematical formula of Work in the article is incorrect. The correct formula is:

W = Fdcosθ

We need to correct the article.

Maximiano (talk) 13:52, 6 September 2023 (UTC)

I'm not a physics expert, but maybe I can help. What specifically does the article say that contradicts the mathematical formula being W = Fdcosθ? The Sackinator (talk) 15:26, 6 September 2023 (UTC)

The formula in the article is written as W = Fdsinθ, but the correct formula as I said is W = Fdcosθ -- that is, the correct formula uses cosine, not sine. I have tried to correct the article in its version in portuguese, but I'm having problems with the Math tool as I try to render new formulas. Maybe you can help me on this. Maximiano (talk) 16:15, 6 September 2023 (UTC)

I suppose that there is some error in installing the math library, because even with valid changes the library gives an error. Luiz Alexandre Silva (talk) 16:31, 6 September 2023 (UTC)

I have fixed the formula in the article using an image file.

Maximiano (talk) 06:33, 21 September 2023 (UTC)