back pressure is described as the reservoir pressure of the tank down stream, that insinuates that it is a stagnation pressure, however if we have isentropic flow and no shock, the stagnation pressure is constant, and the back pressure is the pressure of the tank upstream. ie we have no flow. so back pressure is not stagnation pressure, well then what the hell is exit pressure, its not back pressure?

I'm writing an essay and don't know how to cite these two images.

Neither has an author or a date listed (for the image itself), and I don't know whether I should list no author and no date or cite the author and date of the article where I found the image.

E.g., I cited an image from this source: https://doi.org/10.2147/PTT.S294173

like this:

Ben Abdallah, H., Johansen, C., & Iversen, L. (2021). [Untitled image of an immunological inflammatory process in the skin during the development of psoriasis] [image]. Dove Medical Press. https://doi.org/10.2147/PTT.S294173

and an image from this source: https://doi.org/10.7861/clinmed.2021-0257

like this:

Raharja, A., Mahil, S. K. og Barker, J. N. (2021). Chronic plaque psoriasis [image]. ScienceDirect. https://doi.org/10.7861/clinmed.2021-0257

Is this correct?

Sorry if this is the wrong math header. I'm taking a python/data analytics class and I'm learning logistic regression right now but I'm not understanding how to convert log of odds to probability.

This is my output from my code. I want to turn the coefficients (log of odds) into probabilities so that I can then interpret them (with each unit increase of credit score/annual income, the likelihood of defaulting goes up x%). Thank you.

ALREADY COMPLETED! THANK YOU!

So. I’m in a precalc class. i already emailed the teacher for help but she has yet to answer. i’m not understanding. to be honest imma just copy and paste what i sent to my teacher for the help and the 2 pictures as well.

i mainly need the help for the side that says “#5 From Edfinity Assignment” because i genuinely don’t know what im doing wrong.
the email sent is to prove the work i did in the photos is my own.
i need to know what im missing to fully understand how im not getting the answers for both equations.

Sent to teacher:
(yes i did though these into desmos to make sure they were possible)

i was wondering if you could help me better understand? i’m not quite grasping how 9.3 works. the first question on the work page i got was “Y=x-6 | x^2 + y^2 =26”

the only answer that fit into both was (1,-5) because the x=5 would lay out the answers -1 and 1. those are not the same. but the corrected solution set is (1,-5),(5,-1) so i didn’t understand but did it anyways and asking about it now.

i flipped to the second question on the back of the page. my equation given was “x^2 + y^2 =9 | x^2 - y^2 =3”

i will refuse to write out all the work because it’s ALLOT but i have provided my current work in the 2 attachments.

i don’t understand. something’s not clicking.

I don't really understand how this is a mean.. or how this works in general. I understand the weighted atomic mass takes into account their different abundances, but i do not understand why this method of finding it is right at all. How is this an average..? I understand that this is with the assumption that there are 100 atoms, 75 have a mass of 35 and 25 have a mass of 37, but i just do not understand how this is different from just finding a normal mean. If a question asked you 'What is the mean weight of all the atoms', wouldn't this just be the answer anyway? The thing that is really tripping me up is when we multiply by the percentage- we are just making the masses smaller.... why?

Why is B not -0.04 rather than 0.04? I structured it exactly the way they asked me to A-B(x+C)^2 yet and simply stated what value was in the place of B.

If we don't count the operations then how was -10 correct? in that case, -10 should've been 10 too, why did we have to change our B's operation to positive while keeping C's to negative?

I tried 5 and 6,000 for the yearly raises and 20 and 4,000 for the quarterly raises, but the site marked all four boxes wrong. I also tried adding the raises as a series (15 and 18,000; 210 and 42,000), and that was marked wrong too.
What am I supposed to count here? I’m confused about what “total raise” means in this question. I’ll attach a screenshot of the problem.

Hi everyone, I'm working on an assignment and this problem doesn't make sense to me. I was given the following two matrices:

• ​Matrix A (3\times3): Row 1: [2/3, -1/2, 3/4] Row 2: [-1/4, 1/3, 5/6] Row 3: [1/2, -2/5, 0]

• ​Matrix B (3\times2): Row 1: [-3/2, 4/5] Row 2: [1/3, -1/2] Row 3: [2/5, 3/4]

​The problem asks to find:

a) A \cdot B

b) 2A + (B \cdot A), and always explain the procedures used.

​Part (a) is straightforward since a (3\times3) \cdot (3\times2) gives a 3\times2 matrix.

​However, part (b) asks for 2A + (B \cdot A). As far as I know, B \cdot A is completely undefined because the inner dimensions don't match (3\times2) \cdot (3\times3), so there aren't enough elements in the rows of B to multiply with the columns of A. Furthermore, even if I tried using the transpose B^T \cdot A, the resulting matrix would be 2\times3, which still cannot be added to 2A (3\times3).

​When I messaged my professor pointing out that B doesn't have enough elements to multiply B \cdot A, he refused to clarify if it was a typo and just replied: "Write down what you research, I can't tell you anything, research and justify your criteria."

​Am I missing some obscure linear algebra property here, is this a classic trick question where the expected answer is simply proving non-conformability, or did he likely make a typo (like forgetting a 3rd column in B) and won't admit it? How would you recommend submitting the answer to be 100% safe?

Having difficulty in this question, height is in centimeters. I have gotten h=0.05m. But i have a feeling that im wrong and that i have made a mistake somewhere. These are my workings. PA=30685.68Pa, PB=30293.28Pa. It is to my understanding that there Patm can be ignored when the manometer is open on both ends.

I’m a little confused on how he wants us to draw and divide the squares. Could someone give me some guidance?

If you’ve read Jane Eyre, what’s your favorite scene and what chapter does it take place in?
I have an assignment for one of my university classes where I need to draw a scene from Jane Eyre. I’m having trouble choosing one, especially since I haven’t finished reading the novel yet and I’m not sure I’ll have enough time because I have other projects to work on.
I’d appreciate any suggestions, preferably scenes that would be interesting to illustrate!

Everything before this was basically just repetition till I got it, but now it turns out I actually have to think?

Like reading that sentence I never would’ve guessed that I would have to differentiate the Pythagoras theorem. Like they give you 3 things and expect you to calculate the damn mass of a black hole.

Sorry for the short rant but I’m a bit overwhelmed, the point is that can never seem to get what formula will I have to use based on the problem, i guess it’s reading comprehension but if I’m in calculus my brain is setup to just do calculus, it feels like I loose the ability to understand full words and can just understand variables and constants.

I know this subject is really basic and easy for yall, probably for me too once I get it, but I really need a way to reliably understand what the problem is asking and to extract the values that will matter. Any tips?

TL; DR: I have a hard time understanding what to actually do on these types of problems.

And yes I did get two of them correct but I forgot how I solved it in the first place.

Need to ask 5 questions to a vet about endogamy/inbreeding, specifically related to animals, all I would need would be either an audio message answering the questions or normal replies/dms answering. Thanks :)

Hello,

Are there any pharmacist that would be willing to do a phone interview for my pharmacology class?

I have an exercise I’m working in a group. Initially we all agreed on one method, but after going back to my notes to check something else, I think our method is wrong.
I ommited the values, just focusing on the right method.

My questions are:

1. Should we calculate the pressure drop from the horizon to the 90mm or are we measuring the pressure difference between mercury and water?

2. I understood the 90mm We must use trig to find the real height but just wanted to Check.

H1- 90 mm taken as real height
h2- 90 mm inclined height. Must use trig to find real height of column .

So to summarize, do I use
A) formula 1, H1
B) formula 1, H2
C) formula 2, H1
D) formula 32, H2
Thanks in advance

I'm starting to formulate ideas for an essay about victim blaming mostly how online content creators can influence younger generations and create negative beliefs about women. also briefly on how we can solve this problem. I'm very early into this and am looking for more ideas/knowledge about the topic. any clips that can link back and show this. Ill post the brief bullet points ive created already. any help is appreciated.

-growing up with social media it influences us with online personalities. Mostly effecting  younger generations, particularly young boys and men. Everyone has heard of Andrew tate, adin ross, clavicular or kai cenat if its though the news or on your for you page. Their clips get shared everywhere and most of the time you dont have to be looking for this content for it to show up.   

-How much influence these people and the content surrounding them can have on how young boys see themselves, women, relationships and what it actually means to be a "man/masculine"   

-The manosphere is a collection of online communities, influencers, podcasts, social media platforms that discuss masculinity, dating, relationships and men issues.  

-Red pill community that promotes the idea that men are being disadvantaged by modern society and feminism. 

-Incel communities which are made up of men who struggle with romantic or sexual relationships and blame women for those experiences  

-"pick up artists" who teach how to attract women, using manipulation and the whole alpha and beta male culture which ranks men based on dominance money appearance and status 

-Some of these communities present themselves as places where men can find confidence, advice and support. Looking for guidance when struggling with confidence dating friendships  

-Communities mixed with advice thats harmful towards women 

-Example. Young boys start watching calv because they like content about making money, working out, becoming successful but then gets content added in where women are described as manipulative, inferior or needing to be controlled. He admires the influencer he'll start accepting those attitudes without questioning them  

-All took psych 101, social learning theory. People learn behaviours by watching and imitating others 

-Prevention needs to start when theyre younger before these attitudes 

-Centre has healthy relationship for youth (HRY) works with middle school, high school focus on healthy relationships, consent, discrimination and violence  

-Program gives opportunity to questions beliefs learned from online clips  

Is there a formula that Im missing? I dont remeber learning this

This is my hw (which should be done as a group but both the ppl I'm with are complete bums), we just started doing projectile motion(Paragraph of info on last image) and I'm completely lost. I have some scrap notes but they aren't very good and some people explaining the process/showing me how to obtain the answers/giving an answer key to work my way back from would be insanely appreciated!

Not sure if im reading the questions wrong or got the calculations wrong but none of my answers match the mcq, both pages i guessed the answer, please ignore them.

Hi I have an upcoming debate in my american national government class (I am grade 11 and this is my dual enrollment class), and I'm not an experienced debator at all. I was assigned to just make the closing statement. This is a group based assignment (we were assigned Affirmative on random) and we basically created this thesis: "Congress should have the constitutional authority to remove a social media post containing demonstrably false information about the time, place, or method of casting a ballot because it does not allow citizens to exercise their right to vote, which can largely affect the results of an election." because we were assigned to be the Affirmative side. The motion was basically "Congress should require a social media platform with at least 1.5 million monthly U.S. users to remove, within 24 hours of documented notice from a state or local election official, a demonstrably false post about the date, time, place, or method of casting a ballot in a federal general election during the 60 days before Election Day." I just need some help on what I should put into it so I can get a good grade since this is worth a huge chunk of my grade.

Hey y'all! I'm an anthropology/linguistics grad student and fairly recently got into dark anthropology (study of oppression/systems of power) and I'm writing an argumentative essay - not related to my education, this is a hobby I picked up - about how conversion therapy serves the religious, political and social justification of queerphobia. I've been reading and analyzing various pro-conversion therapy studies around the world (Ukraine, Malaysia, US and Canada [not a conscious choice, that's just the studies' countries of origin I found] - I have 1 example from India, Indonesia and Sri Lanka each) and for some of the studies - mainly the ones outside the US - I've not been able to find an review for them to write in the academic criticism section of my essay. I've also read and analyzed anti-conversion therapy research articles as well. Now that I think about it, I think I should have an academic criticism section for the anti-conversion therapy part of my essay as well. Anyways, I have 2 questions:

1. Is there any medical researcher or some academic who’s familiar with reading scientific studies willing to proofread what I’ve written in my conversion therapy essay so far? Who/where do I go to for that?

2. Could anyone help me find academic criticism reviews for the studies I don't have? If this question is outside the bounds of the rules of this subreddit (I might be asking y'all to do part of my research for me but idk), don't answer and my apologies for asking.

Thank y'all in advance . Again, this isn't for any class project/assignment I'm doing. Like I said earlier, I'm and anth/ling grad student, ling is my concentration. This is a hobby I'm doing.

hi ! i'm stuck on my math homework and it's due tmrw and i'd really appreciate any help and hints i can get :-)

i'm stuck on 1.2, 1.4, 3, 5, and 6.

1.2, i tried induction, got stuck and gave up.

1.4, i started it and it was just a lot so i moved on and i haven't attempted since.

i'm just unsure as to how to go about it for some of them. e.g. i think i have to use the fact that f is differetiable on (a,b) and therefore continuous, and the epsilon-delta definitions of continuity.

i'm assuming 5 is an optimization problem, but i just am at a complete loss as to what is even being asked of me, i'm having a really hard time picturing how to set it up.

6, i've done before on a previous homework but i'm not sure as to how to do a "cheap" proof.

[ 2 year cs student ] How would i add the DAO and Front controller neatly in a class diagram ?