'The weapon of criticism cannot, of course, replace criticism of the weapon, material force must be overthrown by material force; but theory also becomes a material force as soon as it has gripped the masses.' - Karl Marx

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File: 1686909998996.jpg (158.96 KB, 750x1000, flat,750x,075,f-pad,750x10….jpg)

Are you a comrade working on something for school or uni that utilizes math or physics?

Need help on a problem?

Developing a new mathematical theory of marxism?

Post here and ill try to help.

Love & Solidarity

Need help on a problem?

Developing a new mathematical theory of marxism?

Post here and ill try to help.

Love & Solidarity

I want to learn physics properly because I was always bad at it both in school and uni and I feel embarrassed about it but I have no idea how to go about it.

File: 1686925246645.jpg (60.97 KB, 255x255, SAVE_20230616_172003.jpg)

>>18019

I also did bad in high school in math and didnt even study physics. After graduation i just studied on my own with KhanAcademy. That was in 2016, so now you'll find way better resources online.

So if you have a little discipline and curiosity you can easily make up for that. It will give you good foundation for uni.

File: 1687895598145.png (19.81 KB, 562x85, ClipboardImage.png)

How do I solve this? It's from this: https://www.jirka.org/diffyqs/html/slopefields_section.html

>>18461

Not OP, but y' is just the differential of y. Find/calculate the integral and then plug in 0.

Use WolframAlpha to check your answer.

https://www.wolframalpha.com/calculators/integral-calculator/

Wolfram takes language input, you can just write "find the integral of y' = (y - 2x)" for example, or any other math equation, and it gives you a step-by-step solution, slope field, etc.

Not OP, but y' is just the differential of y. Find/calculate the integral and then plug in 0.

Use WolframAlpha to check your answer.

https://www.wolframalpha.com/calculators/integral-calculator/

Wolfram takes language input, you can just write "find the integral of y' = (y - 2x)" for example, or any other math equation, and it gives you a step-by-step solution, slope field, etc.

>>18467

But it has y on the right side… And there's g(x,y) that could be any function involving y and x, which means that it could even be non-linear.

But it has y on the right side… And there's g(x,y) that could be any function involving y and x, which means that it could even be non-linear.

I'm struggling with a physics problem.

You have a car weighing 2.000kg on a 22° incline (with negligible friction).

How much force would it take to pull the car up the incline to a height of 120m?

If you had a machine that could exert 180N of force for 6 hours before needing to be replaced, how many machines and how long would it take to pull a 100 cars a) 2000m on a flat plane, b) 100m up a 20° incline?

Show your working.

You have a car weighing 2.000kg on a 22° incline (with negligible friction).

How much force would it take to pull the car up the incline to a height of 120m?

If you had a machine that could exert 180N of force for 6 hours before needing to be replaced, how many machines and how long would it take to pull a 100 cars a) 2000m on a flat plane, b) 100m up a 20° incline?

Show your working.

I would love to post more about my field of research as a physicist, but it's so niche that I'd essentially doxx myself :(

>>18461

What does Picard's little theorem say? What can you conclude about solubility?

What does Picard's little theorem say? What can you conclude about solubility?

>>18604

But I don't know if g is continuous or differentiable!

But I don't know if g is continuous or differentiable!

>>18608

Since this is the physics thread the answer is that a function is nicely behaved until stated otherwise

Since this is the physics thread the answer is that a function is nicely behaved until stated otherwise

>>18461

This could not have a solution at all depending on how "irregular" g may be. Is that the whole formulation of the problem?

This could not have a solution at all depending on how "irregular" g may be. Is that the whole formulation of the problem?

Awesome idea. I'm a phd in math, would love to help out in any anti capitalist projects that require math.

>>19005

First of all you need to find a job at Lockheed Martin to destroy them from the inside

First of all you need to find a job at Lockheed Martin to destroy them from the inside

File: 1689351093308.pdf (269.38 KB, 197x255, Aurora-ScaleAnarchy_ful-ve….pdf)

>>19005

You could read through this and see if there's any interest to you.

You could read through this and see if there's any interest to you.

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Any opinions of experimentalists on the supposed high Tc SC? Kinda sounds too good to be true

I've identified a need in my region for a product.

It would be assembled from parts imported from China presumably. Who would know what kind of parts specifically and could foresee obvious pitfalls? A mechanical or process engineer or something, or some kind of consultant?

It would be assembled from parts imported from China presumably. Who would know what kind of parts specifically and could foresee obvious pitfalls? A mechanical or process engineer or something, or some kind of consultant?

>>18461

protip: if the question doesn't say to prove something, it's most likely because you can't do so and it wants you to argue against the conclusion

protip: if the question doesn't say to prove something, it's most likely because you can't do so and it wants you to argue against the conclusion

>>18461

Exercise 2.4.103

https://www.jirka.org/diffyqs/html/sec_mv.html#exercise-215

Am I dumb? mx''+kx=0, m=5000, x(0)=0.1, x'(0)=1, the general solution is known to be A*cos(ot)+B*sin(ot) where o=sqrt(k/m).

But if I try to solve this, I get A=0.1, and B=1/o. So k=m/B² but I only know m, both B and k are unknown? What am I missing?

Exercise 2.4.103

https://www.jirka.org/diffyqs/html/sec_mv.html#exercise-215

Am I dumb? mx''+kx=0, m=5000, x(0)=0.1, x'(0)=1, the general solution is known to be A*cos(ot)+B*sin(ot) where o=sqrt(k/m).

But if I try to solve this, I get A=0.1, and B=1/o. So k=m/B² but I only know m, both B and k are unknown? What am I missing?

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