At an instant the velocity in horizontal direction is $0$, and tension acts horizontally. Then it is said tension will do no work.
Now, at the very next instant of time,
Supposedly , all this is horizontally happening , this is a horizontal circle . Then , tension increased velocity in ho...
Here the big circle denotes the circular path of a stone(small circle on path) tied to a string from the centre of the circular path .
At an instant the velocity in horizontal direction is $0$, and tension acts horizontally. Then it is said tension will do no work.
Now, at the very next in...
You are calculating in discrete time steps. In that case indeed speed will increase, as if energy is not preserved.
However, newton's laws apply to continuous time. In the mathematical world in which newton laws are described, speed and acceleration are NOT defined by comparing two nearby moment...
@nonagon There is no need to post the questions in chat.
The questions are seen in main page better than here.
In chemistry, is a reaction only ever non-reversible due to the 2nd Law of Thermodynamics, or is there some other principle working? Thanks to anyone that answers this!
@Alyosha That should get a good answer at chemistry.stackexchange.com/
Off the top of my head, I can think of two replies: (1) all chemical reactions are reversible to some extent; (2) the preference for one direction over the other depends on both the energies and the entropies of the resulting states.
I'd rather my flagging activity reflect rules and guidelines of the site than just "I don't like this question". I asked because I'm conflicted. I like the question but I don't think it's appropriate here. Following my feelings I'd +1 it and following the appropriateness of it I think I'd flag it. I think I'll do neither and wait for others to weigh in on it.
@BrandonEnright and other editors: Please in the future, be a bit conservative when introducing new tags. We more or less already got the tags we need. The tag 'pion' did not exists 24 hours ago, and I'm not sure it is a good idea to introduce new tags for individual elementary particles. Secondly, newly invented tags create a lot of unnecessary activity on the front page if all the relevant old posts have to be equipped with these tags also. Please mostly edit posts already on the front page.
@BrandonEnright Overall, I think you and other editors are doing a great job. Minor advices: 1) Remove greetings. 2) Change https -> http. 3) Don't forget to check the title (it is easy to miss in the edit.)
I have been removing greetings and thanks at the end. I noticed you were editing some of my links to do https -> http so I'm trying to remember to do that. I'm also trying to focus more on titles now.
I notice when you do edits, you rarely change much of the wording or spelling. I've been trying to make sentences more natural sounding. Many are obviously either translations or constructed by non-native English speakers.
so this is probably a stupid question but. the reason mass does not determine how fast everything goes, i.e. a ton of iron and a kilo of steel go the same speed is because of terminal velocity yes?
@ZettaSuro just as a useful note, I actually asked for my account to be deleted. However, now I've changed my mind and it just so happens that my account isn't deleted yet. It's probably some glitch in the system . Before asking for my account to be deleted, my account was working just fine and I could comment etc.
@EiyrioüvonKauyf mass doesn't really directly determine how things go although it can have a big impact. Mass determines how much momentum and kinetic energy an object will have for a given velocity. So if you think about the reason things move in terms of energy and momentum then mass affects things linearly.
@EiyrioüvonKauyf when it comes to mass falling it an atmosphere, things get more complicated. What really matters is density and shape but of course, mass linearly affects density.
So mass doesn't determine velocity but in basically every case it is one of the primary factors
The only case where mass truly determines velocity is on the extreme ends. Infinite mass has 0 velocity (which is only meaningful in the limit since infinite mass isn't physical since infinity isn't physical) and the 0
The 0-mass case where that forces velocity to be the speed of light.
@ColinMcFaul Thanks, en.wikipedia.org/wiki/Irreversibility seems to think it's just the second law. I considered asking there initially, but felt the question a bit too trivial (and am cautious of question-carpet-bombing).
@BrandonEnright Jim's and Jack's house for example.
@BrandonEnright It is only my gut feeling that one should alter the question without any preconceptions with regards to relevance or interpretation (except for tags).
@BrandonEnright I mean that you rework these questions great, but perhaps slightly too much. I can imagine an OP asking to himself: Did I write this? Wow!
@BrandonEnright Maybe if I thought up of a carefully worded question on the practical value of the "Know how to solve every problem that has been solved." part to learning Physics it might be on topic.
@BrandonEnright sorry i heard a popularized result that galileo discovered that things take equal time to reach the bottom of a building, contrary to aristotle. how should this be phrased to be more accurate?
@Gugg Thank you, I have tried these....but nobody wants to discuss the meaning of the second quote it seems because of the vagueness of the first one :(
@ZettaSuro that completely depends on what aspect of quantum computing you want to work on. If you restrict yourself to quantum algorithms the level of quantum mechanics you need to know is quite limited
Steve, Stack Overflow's not the only site on the whole Internet to get help with programming problems. Stack Overflow's design goal is to be a repository of useful questions and answers. Nothing else. That's what it's for, and that's the way we (Stack Exchange and the "community" around it) strive to keep it because it is an extremely useful resource - and we don't want to dilute that. If the format doesn't suit your need, well, use something else (including the chat rooms provided for Stack Overflow). — Mat9 hours ago
At an instant the velocity in horizontal direction is $0$, and tension acts horizontally. Then it is said tension will do no work.
Now, at the very next instant of time,
Supposedly , all this is horizontally happening , this is a horizontal circle . Then , tension increased velocity in ho...
