How do you calculate drag coefficients? |
- How do you calculate drag coefficients?
- Is There Any Scale Where The Distribution Of Electric Charge Within A Neutron Is Relevant?
- What role does insulin even play in the production of adipose tissue?
- Is there a size limit to the size of a hurricane or cyclone on Earth?
- Does brain size determine the intellect of a creature? Are there examples of an animal with a small brain being more intelligent than a big brained animal?
- Why doesn't the ecliptic lie on the same plane as the Milky Way?
- Foundation question: Why are ligand-gated channels not considered active transport?
- Can humans and chimps reproduce?
- If vaccines are dead/deactivated/weakened forms of a disease, then what is preventing us from making vaccines for all diseases?
- Do you get infinite energy if you interconnect a motor and a generator?
- How do you calculate the preload value of a threaded bolt?
| How do you calculate drag coefficients? Posted: 20 May 2019 12:02 PM PDT never taken a physics class but I've taught myself a lot to some degree of success with the exception of calculating drag/ drag coefficients. It has absolutely confounded me, everything I see requires the drag and everything for calculating the drag requires the drag coefficient. I just want to find out how fast a thing falls from a height and the energy it exerts on impact. (want to run the numbers on kinetic bombardment. also, want to know how because am trying to find out where an airplane crashed, no it is not Malaysia flight 370. but I just need to know how for that, it's just plugging in numbers at this point) if yall want to do the math, here are the numbers; 6.096m long, .3048m diameter cylinder that weighs 8563.51kg and is being dropped from a height of 15000km and is making impact at sea level. is made of tungsten. assume that it hits straight on, base first, with no interferences from any atmospheric activities (wind) or debris (shit we left in orbit) and that it's melting point is 6192 degrees F so it shouldn't lose any mass during atmospheric re-entry (space shuttles experience around 3000 degrees F on reentry according to https://science.howstuffworks.com/spacecraft-reentry.htm so I think it'll be fine for our purposes.) sorry this was meant to be just like the first paragraph but it turned into much more. thanks. edit: holy shit this got a good bit of upvotes and comments, I didn't notice cause my phone decided to just not tell me but thank you all for the help and suggestions and whatnot!! it's been very helpful in helping me learn more about all this!! edit numero dos: I'm in high school (junior) and I haven't taken a physics course here either but I have talked with the physics teachers and they've suggested using Python and I'm trying to learn it. but thank you all so much for your time and thought out answers!! it means a lot that so many people are taking the time out of their day and their important things to help me figure out how much energy a metal rod "falling" from orbit releases. [link] [comments]  |
| Is There Any Scale Where The Distribution Of Electric Charge Within A Neutron Is Relevant? Posted: 21 May 2019 05:41 AM PDT A neutron contains valence quarks with both positive and negative charges so tightly bound that on most if not all conventional scales the baryon as a whole can be treated as a single electrically neutral particle. My simplified layman's understanding is that the strong force typically dominates the electromagnetic force on scales for which it's relevant at all, but is there any scale where the electromagnetic force operating on the charged components of a neutron is relevant to understanding the behavior of those components or the neutron as a whole? Is this expected to change at sufficiently high energy states (e.g before discrete atomic nuclei formed)? [link] [comments]  |
| What role does insulin even play in the production of adipose tissue? Posted: 20 May 2019 08:47 PM PDT |
| Is there a size limit to the size of a hurricane or cyclone on Earth? Posted: 20 May 2019 05:38 PM PDT |
| Posted: 20 May 2019 04:30 PM PDT If so, are they utilizing their brains better and how did that come about? [link] [comments]  |
| Why doesn't the ecliptic lie on the same plane as the Milky Way? Posted: 20 May 2019 05:42 PM PDT and do other known exoplanets orbit at random angles? Or retro grade orbits? [link] [comments]  |
| Foundation question: Why are ligand-gated channels not considered active transport? Posted: 20 May 2019 12:14 PM PDT I have seen several sites that claim that channels are all passive or facilitated transport proteins but then I see ligand-gated channels come up with some channels opening up after being phosphorylated. Sooooooo I don't get it. How can these channels still be considered facilitated diffusion? In general I'm having trouble understanding which transport proteins of a cell membrane use active transport and which don't use ATP at all. I know that things like aquaporins are completely ATP free but that's about as concrete as I can get. Every other transport protein seems to have conflicting info online. [link] [comments]  |
| Can humans and chimps reproduce? Posted: 20 May 2019 05:38 AM PDT Humans and chimpanzees share the same kingdom, phylum, class, order, suborder, infraorder, family, subfamily, and tribe. Is it possible for a human and a chimp to produce viable offspring? [link] [comments]  |
| Posted: 20 May 2019 12:35 PM PDT For example, what is preventing us from making a vaccine for herpes and other STDs, like AIDS/HIV? [link] [comments]  |
| Do you get infinite energy if you interconnect a motor and a generator? Posted: 21 May 2019 01:27 AM PDT The physics I've learned here is only from high school so please bear with my mistakes. So I've learned that a coil when rotated in a magnetic field produces current, and when a current flows through a coil in a magnetic field,. The coil rotates. Basically a generator and a motor respectively. What if we connect a motor to a generator such that when you manually rotate the coil in a generator, it produces a current which can be used to rotate the coil in the motor. While the very same coil can be used to rotate the one in the generator which can lead to infinite energy and both coils would rotate forever. [link] [comments]  |
| How do you calculate the preload value of a threaded bolt? Posted: 20 May 2019 08:31 AM PDT Everything I find online is confusing and requires constants I'm not familiar with. If I have say a 6" stainless steel threaded bolt, how can I calculate the preload? Thanks [link] [comments]  |
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