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07:10
1
Q: Static friction when rolling with constant speed

Stallmp (I know that similar questions have been asked before, but I would like to ask very specific questions about this specific image that I do not understand). Let's say that we have a wheel of a car that is initially stationary. In order for the wheel to spin, we need to apply a torque to the wheel...

 
2 hours later…
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HNQ
09:29
1
Q: Could Earth's Zirconium (used in geological dating) have formed in extraterrestrial events before the earth was formed?

LucasThis is a follow up question asked and answered (Radio-dating and the age of the earth) The answer was given that Zirconium is formed under high pressures and temperatures. How do we know, for example, most of the Zirconium on earth wasn't formed in some extraterrestrial event before the earth fo...

 
10 hours later…
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HNQ
19:55
2
Q: Why Curie temperature is bigger for smaller lattice in 2D Ising model

JohnUsing Metropolis algorithm, Curie temperature was calculated for square lattices with different sizes 4x4, 8x8, 16x16 and 32x32. Here Curie temperature was estimated as temperature of maximum of heat capacity.It appeared Curie temperature is decreasing with increasing a lattices size. But why? I ...


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