/sci/ - Science & Math » Thread #12653139

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Anonymous Mon 01 Feb 18:50:06 2021 No.12653139 View Reply Original Report

Quoted By: >>12653404 >>12653447 >>12653723 >>12653772 >>12654852 >>12654975

I am better in physics than all of you. Prove me wrong. Hint : you cant

Anonymous

Anonymous Mon 01 Feb 2021 18:55:12 No.12653149 Report

Quoted By:

Nice bait

Anonymous

Anonymous Mon 01 Feb 2021 20:24:10 No.12653404 Report

Quoted By: >>12653414

>>12653139

derive coulombs law without using gauss law

Anonymous

Anonymous Mon 01 Feb 2021 20:26:45 No.12653414 Report

Quoted By: >>12653419 >>12653644

>>12653404
Start with Newton's law.
F= m1m2/r^2
EM also isotropic. Just like masses cause gravity charges cause electricity. Ergo Coulomb law
F = qQ/r^2
Add constant for proper dimensions
QED

Anonymous

Anonymous Mon 01 Feb 2021 20:27:48 No.12653419 Report

Quoted By: >>12653437

>>12653414

wrong. you are missing the constant

how do you derive it without gauss law?

Anonymous

Anonymous Mon 01 Feb 2021 20:32:25 No.12653437 Report

Quoted By: >>12653440

>>12653419
Constant comes from dimensional analysis. Its value comes from experiment

Anonymous

Anonymous Mon 01 Feb 2021 20:33:11 No.12653440 Report

Quoted By:

>>12653437

wrong. it can be derived from Gauss Law.

However you can not do it without it, becauseu are not better than us in physics.

now sit down and accept being a brainlet , just like the rest of us, bye

Anonymous

Anonymous Mon 01 Feb 2021 20:35:04 No.12653447 Report

Quoted By: >>12653451

>>12653139
Suppose I was really into Hot-Wheels and I built a downwards ramp of height H. Now I want to add a loop-de-loop at the end of the ramp. I want it to be as large as possible, that is, when a car goes down the ramp it will 'just barely' make it around the loop. So for a car of mass M what should the radius of the loop be?

You should be able to solve this.

Anonymous

Anonymous Mon 01 Feb 2021 20:37:37 No.12653451 Report

Quoted By: >>12653506 >>12653650

>>12653447
I could solve this at sixth grade anon, shit test.
[spoiler:lit]It's just fucking conservation of energy.[/spoiler:lit]

Anonymous

Anonymous Mon 01 Feb 2021 20:38:09 No.12653455 Report

Quoted By: >>12653472

Derive general relativity.

Anonymous

Anonymous Mon 01 Feb 2021 20:42:04 No.12653472 Report

Quoted By:

>>12653455
Assume special relativity valid. Distort the Minkowski Metric. Done.

Anonymous

Anonymous Mon 01 Feb 2021 20:49:31 No.12653506 Report

Quoted By: >>12653676

>>12653451
post solution

Anonymous

Anonymous Mon 01 Feb 2021 21:21:01 No.12653644 Report

Quoted By:

>>12653414
>EM also isotropic. Just like masses cause gravity charges cause electricity
Those aren't enough. You have to also equate flux within an enclosed surface with the charge in it.

Anonymous

Anonymous Mon 01 Feb 2021 21:22:52 No.12653650 Report

Quoted By:

>>12653451
'I could' isn't a solution neither in sixth grade or in this case.

Anonymous

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Anonymous Mon 01 Feb 2021 21:26:56 No.12653676 Report

Quoted By: >>12653761 >>12653762

>>12653506
$E_i=E_f \\ PE_i = PE_f + W_{\mathrm{friction}} \\ MgH = MgR + W_{\mathrm{Incline}} + W_{\mathrm{Loop}} \\ MgH = MgR + \mu_k MgH\cot(\theta) + W_{\mathrm{Loop}} \\ $

At this point, I don't feel like solving out that work done in traveling around a loop.

Anonymous

Anonymous Mon 01 Feb 2021 21:34:10 No.12653723 Report

Quoted By:

>>12653139
How would light change if the time dimension in space time were positive?

Anonymous

Anonymous Mon 01 Feb 2021 21:36:17 No.12653735 Report

Quoted By:

Why is inertial and gravitational mass equal in Newtonian gravity?

Anonymous

Anonymous Mon 01 Feb 2021 21:40:54 No.12653761 Report

Quoted By:

>>12653676
Found a typo, and I think I solved it out.
$E_i=E_f \\ PE_i = PE_f + W_{\mathrm{friction}} \\ MgH = 2MgR + W_{\mathrm{Incline}} + W_{\mathrm{Loop}} \\ MgH = 2MgR + \mu_k MgH\cot(\theta) + W_{\mathrm{Loop}} \\ MgH = 2MgR + \mu_k MgH\cot(\theta) + 2MgR \\ R = \frac{\mu_k \cot(\theta) - 1}{4} H \\ $

Of course, the height of the loop should depend on the angle of the incline and the coefficient of friction between the materials.

Anonymous

Anonymous Mon 01 Feb 2021 21:41:09 No.12653762 Report

Quoted By:

>>12653676
>Didn't neglect friction
>Even if you did you you would have gotten R=H
>Even then you ignored the fact if the car had no kinetic energy at the top of the loop it would just fall off.

Anonymous

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Anonymous Mon 01 Feb 2021 21:42:56 No.12653772 Report

Quoted By: >>12653782 >>12653820

>>12653139
Debunk this

Anonymous

Anonymous Mon 01 Feb 2021 21:45:11 No.12653782 Report

Quoted By:

>>12653772
More expensive than a rocket

Anonymous

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Anonymous Mon 01 Feb 2021 21:55:23 No.12653820 Report

Quoted By: >>12653931

>>12653772
Have a go at these

Anonymous

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Anonymous Mon 01 Feb 2021 22:16:00 No.12653931 Report

Quoted By: >>12653962

>>12653820
Why am I seeing so many pictures like this lately?
I know pic related is old but some of the ones in your pic are incredibly cringe which leads me to believe this has something to do with nu-iZoomers.

Anonymous

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Anonymous Mon 01 Feb 2021 22:20:44 No.12653962 Report

Quoted By: >>12653976

>>12653931
I know it's cringe, that's the point

Anonymous

Anonymous Mon 01 Feb 2021 22:22:46 No.12653976 Report

Quoted By: >>12654266

>>12653962
dont explain the joke when it flies right over someones head, its a lot funnier that way

Anonymous

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Anonymous Mon 01 Feb 2021 23:19:03 No.12654266 Report

Quoted By:

>>12653976
Autism, runs through the senpai

Anonymous

Anonymous Tue 02 Feb 2021 02:44:54 No.12654852 Report

Quoted By:

>>12653139
I remember a previous thread that got pruned.
Titled something like "I am a 5yo prodigy, far superior to everyone else", or something or rather.

Did you OP that pruned thread?

Anonymous

Anonymous Tue 02 Feb 2021 03:43:04 No.12654975 Report

Quoted By:

>>12653139
Are you that weirdo Nuclear-power-plant engineer probably from Germany with his own sex dungeon and collection of vacuum dick pumps?

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