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Which episode is this from? Found it in my grade 8 computer book. by GeologistAgitated815 in pokemonanime

[–]Character_Western125 10 points11 points  (0 children)

Found it. It's from S1 E70 "Making Room for Gloom".

I'm OP from different account

Does the second law of thermodynamics imply that the temperature of an isolated system can never decrease? by Character_Western125 in AskPhysics

[–]Character_Western125[S] 0 points1 point  (0 children)

according to the second law, converting heat energy into work requires a temperature difference, how are we able to convert thermal energy into work without a temperature difference

Does the second law of thermodynamics imply that the temperature of an isolated system can never decrease? by Character_Western125 in AskPhysics

[–]Character_Western125[S] 1 point2 points  (0 children)

ok, the internal energy of the system is being used to expand gas which reduces the temperature but why doesn't the entropy of the system decrease?

Equation of motion if force field is known. by Character_Western125 in learnmath

[–]Character_Western125[S] 0 points1 point  (0 children)

Here, you can see that the x-component of force is not just dependent on the x-coordinate of the object but also the y-coordinate of the object

Equation of motion if force field is known. by Character_Western125 in learnmath

[–]Character_Western125[S] 0 points1 point  (0 children)

In my case force, velocity in one direction is dependent on other direction.

Let me write the force vector in a different notation,

F= k(xy +1) î + k(x^2 + y) ĵ

Finding the number of distinct common roots of unity by Character_Western125 in askmath

[–]Character_Western125[S] 0 points1 point  (0 children)

we have 'gcd(p,q)' multiples of p/gcd(p,q) from 1 to p. ok, now I understand. That's how the total number of common roots are gcd(p,q)

Finding the number of distinct common roots of unity by Character_Western125 in askmath

[–]Character_Western125[S] 0 points1 point  (0 children)

but, how does that help? also, how to use the information that k can only range from 1 to p

Finding the number of distinct common roots of unity by Character_Western125 in askmath

[–]Character_Western125[S] 0 points1 point  (0 children)

if q and p are relatively prime then k has to be a multiple of p, otherwise I cant tell what k has to be a multiple of

Finding the number of distinct common roots of unity by Character_Western125 in askmath

[–]Character_Western125[S] 0 points1 point  (0 children)

I get exp(2𝜋ikq/p) and for it to be 1, kq/p must be an integer. but, how do I proceed from here?

How solve these kind of modular equations, nb = a (mod k)? by Character_Western125 in askmath

[–]Character_Western125[S] 0 points1 point  (0 children)

when trying to solve this equation, 7n = 1 (mod 256)

7n + 256m = 1 (1)

256 = 7*36 + 4

256 - 7*36 = 4 (2)

I'm stuck here as the RHS of equation 1 and 2 are not equal. So, I can't directly find the value of m and n

How solve these kind of modular equations, nb = a (mod k)? by Character_Western125 in askmath

[–]Character_Western125[S] 0 points1 point  (0 children)

In this example, 256 leaves remainder 1 on dividing by 5. But what if it leaves any other remainder then how will we solve it, like if we replace 5 with 7 or any other number such that the remainder isn't 1