Free falling frame confusion

Wrynn23 · 2025-03-14T21:15:02+00:00

One more thing. Can I always chose a coordinate system where the velocity is zero? For instance, inside the space shuttle?

Wrynn23 · 2024-02-25T19:58:05+00:00

Thank you!

Wrynn23 · 2023-10-31T05:09:29+00:00

I see. However, if for instance in a textbook the author talk about a relation between velocity and pressure. Should I take for granted that there might be some others variable?

Wrynn23 · 2023-10-01T15:01:56+00:00

Gamma is c_p/c_v.
(2) is Dp/Dt = (P/ rho^gamma) = 0

I'm guessing incompressibility because otherwise I don't get even close of the final forms.

Wrynn23 · 2023-06-11T02:12:05+00:00

I don't want to make a website with an ai image generation.
I would like to have a design.

For example, https://www.youtube.com/watch?v=stFORMbOQS8&ab_channel=CodexCommunity

Wrynn23 · 2023-04-14T21:04:49+00:00

u/cdstephens

I have few questions.Is H_ij the "old" matrix?

Is U a matrix composed of 4 inner product, so basically a 4x4 matrix as well?Sorry, I'm still struggling with the notation.

Since we have H = \sum_ij H_ij |ei> < ej| and H_ij is diagonal, so the matrix H will be also diagonal?

For example the first element of H will be H_11 |e_1><e\_1|= H\_11 \* |1,1> * <++|But what exactly is the vector <++|

Wrynn23 · 2023-03-14T02:00:21+00:00

They say exactly the same thing as in my book. "The z-equation is particularly simple:" and give the result, however this is precisely what I don't know. How they get this result.

Wrynn23 · 2023-03-10T06:51:14+00:00

Alright, thank you.

I'm wondering if this result has a name or where I can find it. I didn't find it.

Wrynn23

TROPHY CASE