Recent content by curious_ocean

Thanks, I have plenty of good texts to reference (including Bird et al.) but they are not always the most user friendly. I'm curious what folks think about the momentum flux relationship to the shear stress. Am I on the right track there?

Chestermiller I think I understand what you meant now. The sign also determines whether the force is the deforming force (plate acting on fluid) or restoring force (fluid acting on plate).

I had my tensor notation messed up. The first index should be the direction of the velocity and the second index should be the surface it is fluxing through.

In my googling I found something that says the momentum flux and shear stress have opposite signs... I wonder if this is where my answer lies... So for the red stress in the picture I drew before (attached above)...Imagine that there are solid plates on the top and bottom of a fluid column. The...

Thanks for responding Chestermiller, I'm trying to understand the analogies between Fick's 1st Law of Mass Diffusion and Fourier's Law of Heat Conduction. In the case of Fick's 1st Law the diffusive mass flux happens in the direction opposite to the concentration gradient, smoothing out...

Hi Physics Forums, I'm wondering why Newton's Law of Viscosity sometimes has a negative sign in front of the viscosity and sometimes it doesn't? Thanks for your help!

What is the limit of the function as x goes to -5 (e.g. in the graph below) if the domain of the function is only defined on the closed interval [-5,5]? I realize that the right hand limit DOES exist and is equal to 3, but the left hand limit does not exist? So does that mean that the overall...

This is a table from our textbook that I'm still working through

@Astronuc Thank you! Regarding Q2: It looks like there are volcanoes associated with very high silica content magma. From the last page of the slides at this link that you sent http://www.soest.hawaii.edu/coasts/lecture/gg101/powerpoints/Volcanoes.pdf It looks like rhyolite caldera complexes...

@snorkack Thank you! That makes sense. I hadn't thought of an answer that simple - which almost certainly means it is true! I thought there must be some sort of melting/welding of plates into each other or something. I don't know the names of many faults so I am not sure if there are...

Hi PF, I am teaching an introductory college level Earth Science course and have few questions about the different types of volcanoes. I understand that the type of magma largely dictates the volcano type, where felsic (rhyolitic/granitic) magma has a higher silica and gas content than...

Edit: When and how is a new single plate formed from two (or more) previously existing plates?

I think the Indian sub-continent is on the Australian-Indian plate, slamming into the the Eurasian plate. But good point that the continents were built by being fused together. I have much more to learn here, but I'm under the impression that the mechanism for that is still an active area of...

Hi PF! I'm teaching a little unit on tectonic plates and have a question about the projected pattern of future plates. I know that plates can be broken into 2 (or more) new plates as the result of a continental rift. Our textbook also says that "The Atlantic seafloor may eventually become old...

Thank you jim mcnamara! Is there are particular property of water that makes it special to be able to contribute to exocytosis/endocytosis?