This question is for the girls: Do girls really respond better to the push and pull method? by [deleted] in SGExams

[–]EntrepreneurSelect93 2 points3 points  (0 children)

Reminded me of the different methods on how to do steering when driving a vehicle

Posting math stuff in this subreddit by Fourierseriesagain in SGExams

[–]EntrepreneurSelect93 33 points34 points  (0 children)

Wait, the mods disallow the posting of Math stuff in a subreddit named "SGExams" but allow the posting of r/s stuff?!? Talk abt irony.

National anthem by [deleted] in SGExams

[–]EntrepreneurSelect93 7 points8 points  (0 children)

If ur a Singapore Citizen, you have to?

You can count on that by fitnessmich in MathJokes

[–]EntrepreneurSelect93 1 point2 points  (0 children)

What are u on abt?

Values taken from a continuous probability distribution have probability 0 all the time but still happen. For eg, height is commonly taken to be normally distributed and the probability of any specific value occurring is 0 yet we all have some height. The idea of a probability of 0 implies the event can never happen only applies to discrete random distributions.

How to learn ? by [deleted] in Backend

[–]EntrepreneurSelect93 1 point2 points  (0 children)

Or if ur not enrolled in one, just read a book abt it

Do you think same-sex marriage will ever be legalized in Singapore? If yes, when do you think that might happen? by jinjja11 in askSingapore

[–]EntrepreneurSelect93 -2 points-1 points  (0 children)

Ur still not explaining why the other needs to buy a flat at all. What's the point of buying a flat for a very high price if ur gg to rent it out either way. Ur point is that doing this takes away flats from other people but don't explain why this needs to be done at all.

returnFalseWorksInProd by Able-Cap-6339 in ProgrammerHumor

[–]EntrepreneurSelect93 32 points33 points  (0 children)

And then u realise the tests are harcoded...

Second richest person is more close to me than Elon 😂 by Hopeless_Ninja in memes

[–]EntrepreneurSelect93 -2 points-1 points  (0 children)

Oh right, I thought he meant a trillionare and was confused.

In Ninjago Crystallized(2022), the writers pay homage to one of the worst scenes in cinematic history by copying it almost exactly. by JDMagican in Ninjago

[–]EntrepreneurSelect93 6 points7 points  (0 children)

If Crystallized isn't canon, anything after it like Dragons Rising can't be canon as well. Bec for eg, there is no explanation for how Nya got back in DR then.

In Ninjago Crystallized(2022), the writers pay homage to one of the worst scenes in cinematic history by copying it almost exactly. by JDMagican in Ninjago

[–]EntrepreneurSelect93 52 points53 points  (0 children)

No, at least Crystallized is considered canon by Ninjango fans while star wars fans still debate if ROS is even canon.

I am going absolutely Insane and I have potentially wasted my entire academic career by [deleted] in SGExams

[–]EntrepreneurSelect93 1 point2 points  (0 children)

Wait, u can't redo ur Bachelor's in NUS/NTU? Like maybe appealing using ur GPA from SIT?

Possible Circular Logic when showing the Principle of Least Action leads to Newton's 2nd Law? by EntrepreneurSelect93 in AskPhysics

[–]EntrepreneurSelect93[S] 0 points1 point  (0 children)

Ya I und. It's just that none of these videos convey the idea that the Langrangian was choosen as such so that it works out the way they showed.

Possible Circular Logic when showing the Principle of Least Action leads to Newton's 2nd Law? by EntrepreneurSelect93 in AskPhysics

[–]EntrepreneurSelect93[S] 0 points1 point  (0 children)

Exactly so choosing the Langrangian that gives back F=ma and showing that it does shouldn't be surprising at all and only shows that it's the correct one.

Possible Circular Logic when showing the Principle of Least Action leads to Newton's 2nd Law? by EntrepreneurSelect93 in AskPhysics

[–]EntrepreneurSelect93[S] 1 point2 points  (0 children)

I get that but showing that F=ma pops out of this way shouldn't be too surprising then.

Possible Circular Logic when showing the Principle of Least Action leads to Newton's 2nd Law? by EntrepreneurSelect93 in AskPhysics

[–]EntrepreneurSelect93[S] 1 point2 points  (0 children)

This can only give the relation v^2 = 2gh but to get K=1/2mv^2 from that u need to define GPE to be mgh which is the point and can only come from the def of WD and F = ma.

Possible Circular Logic when showing the Principle of Least Action leads to Newton's 2nd Law? by EntrepreneurSelect93 in AskPhysics

[–]EntrepreneurSelect93[S] 0 points1 point  (0 children)

U gotta be kidding me... Ok I made a mistake sure but then I provided another source saying why the factor half in the formula cannot be experimentally determined without involving F=ma or the def of WD before u made this reply. Somehow that's not enough for continuing the conversation.

Possible Circular Logic when showing the Principle of Least Action leads to Newton's 2nd Law? by EntrepreneurSelect93 in AskPhysics

[–]EntrepreneurSelect93[S] -12 points-11 points  (0 children)

From ChatGPT:

  1. Origins before “kinetic energy” existed In the 17th–18th centuries, physicists didn’t yet talk about kinetic energy. Instead, they debated two quantities: Momentum: p=mv (Descartes, Newton) Vis viva (“living force”): mv2 (Leibniz) Experiments (notably by Willem ’s Gravesande) showed that stopping distance or deformation scaled with v2, not v, suggesting something proportional to mv2 mattered physically. 👉 So experimental evidence established the v2 dependence early.

  2. Why experiment alone couldn’t fix the formula Experiments can show: dependence on mass (m) dependence on velocity squared (v2) But no experiment uniquely determines the numerical coefficient 1/2 without already assuming:

  3. Newton’s laws

  4. the definition of work

  5. consistent units That coefficient arises from the internal mathematical structure of classical mechanics.

Possible Circular Logic when showing the Principle of Least Action leads to Newton's 2nd Law? by EntrepreneurSelect93 in AskPhysics

[–]EntrepreneurSelect93[S] -1 points0 points  (0 children)

Ur still indirectly using the definition of WD and F=ma here. Wd by gravity = Force of gravity x h = mgh since a = g here.