Where Do Physics and Chemistry Distinctly Diverge?

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Physics and chemistry share similarities, leading to questions about their distinct boundaries. The discussion emphasizes that both subjects can be explored, but chemistry-related inquiries should be directed to the appropriate subforum. Participants are encouraged to ask well-formulated questions without hesitation. Mentors are available to assist by relocating posts to the correct forum if necessary. Understanding the differences between these sciences can enhance the quality of discussions.
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physics and chemistry, are very similar in some respects. where can we draw the line between these two sciences?

(considering this is a physics forum, i want to know what i can and can't post!)
 
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You can post either, as long as you post chemistry questions in the chemistry subforum :-P
 
And if you happen to post in the wrong forum a mentor will be along shortly to move it to the correct forum. Never be afraid to ask well formulated and intelligent questions.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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