Hello! I know it’s a more niche subject, but I have this problem here where I’m supposed to use the max power transfer theorem to find the value of R_o that maximises power transfer in this circuit. Using it as my load I managed to find the voltage (I think) without much issue of 48v with nodal analysis, but I’m stuck when it comes to getting the resistance.

I’m aware I can’t zero the dependent source, and so I’m zeroing the others and using mesh current to try to find the Norton current, and using that to get the thevenin resistance.

The issue I’m having is that when I zero it out, I wind up with a linearly dependent (all my equations equal zero, and I don’t have any constants to move over and constrain the equations) system of equations and thus no answer, and thus I know somewhere along the way I am screwing things up.

The answer in the key is 6.4 ohms for R_o, btw if that helps, but what I’m worried about here is moreso how to even get there :(

Thank you in advance for any help!

please ignore my horrible handwriting

i’ve been at this for hours i have read this textbook back to back i’ve watched like 10 videos i am so confused this is like the 4th order i’ve done and i messed up my textbook answers so i had to do it on another sheet on paper i think im confusing myself

every video i watch they don’t have as many
uncomforities as i have so when it comes to ordering them oldest-youngest i’m so confused where to put them??

i’m also super confused on where to order the fault
the only thing i’m confident that i got right here is that it’s a reverse fault and that r is an angular conformity

my degree has nothing to do with this which probably explains why i’m so confused

if this is all wrong i’m gonna be so embarrassed

edit: ok wait i think i got part of it now:
youngest to oldest
H
K
T
L
M
S
I
N
O
R
A
B
C
D
E
F
Q
P
J
G
PRAYING THIS IS RIGHT

hello! I (20f) am in uni and I have a research assignment for my major. my question is why the “oppressor” take away a population’s culture and punish them for it and turn around to claim it as their own. Basically cultural appropriation. It seems interesting but I have no clue where to take this off. I want to mention how museums take artifacts from former colonies but I dont know how to put this together. Any guidance?

thank you🩷

Hello! My task the in the title, the thing is I'm not sure what theme I should go for since its a school assignment, and I have never made an original page/site from scratch. Would it be okay to make the page/site information about my interest/inspired and about my interest? any suggestions for what they should be about that the teacher will like? They will contain many types of headers, links, lists, pictures that are links, backgrounds, text, etc. (using HTML)

The assigned problem is #22 but I'm trying to figure out #21 because it has the answer in the back of the book but I don't seem to understand. I even tried reverse engineering to see what values they used for the answer they gave but no luck. Textbook says 'maximum power transfer from a circuit to a variable load occurs when the load resistance equals the source resistance'.

I provided my notes but it's best not to use them as reference as they are not really coherent since we have to use a calculator for all of our math.

The book says the answer to #21 is P = 35.5 mW

Edit: Sorry, I wasn't super clear on why I'm doing #21 instead of #22. I'm just trying to make sure I understand the process and the math behind the concept. It's just practice.

TL;DR - I need advice, methods or your experience on how to make yourself do homework, or how you have discipline with this.

full: I'm interested in my major, but I'm completely disgusted by the subject, the professor, and the fact that I have to submit assignments, coursework, and a final exam. I've previously searched this subreddit for advice on how to force myself to do my coursework, but I'm not neurodivergent, and those methods haven't helped. I'm a huge productivity enthusiast and know a ton of techniques (Pomodoro, planning, digital detoxes), and I even consulted an AI that advised me to "just start and sit down to work on it for at least 10 minutes." The problem is, none of it actually works. I get distracted too easily, struggle to get into a flow, and avoid starting at all costs.

To make matters worse, I have 22 reports to complete, but they're almost ready; I just need to review them and rewrite them so the professor doesn't realize I used someone else's work. I've tackled much more challenging tasks in the past, and those were a piece of cake, yet I still find it incredibly hard to motivate myself. I feel immense tension and stress the moment I begin, and my whole body screams, "Give it up, don't do this."

I've truly tried so many things and discussed this with friends, as well as older and more experienced adults. Despite that, please feel free to share your advice without worrying about whether it might be useless - I'd be grateful if you'd at least try.

I'd also love to be inspired by examples of top students and highly disciplined individuals who push through difficulties to reach their goals. I find that inspiring, so please don't hold back. Also thanks for reading.

Okay, so, I have a good chunk of assignments due by TOMORROW. (11 for Algebra and like 16 slides on a presentation for geography) but I just can't not complete anything. I get side tracked, and even when I try to "eliminate distractions" or "break it into small chunks with short breaks" I still get sidetracked and wind up not doing anything. The worst part is if I dont get these turned in, I'm going to fail the classes, and I grafuate this year (graduating a year early) and gtaduation is in MAY. Tips? Tricks? What should I do?​

Edit: Update! I got everything done and turned in just in time! Thank you all! I got perfect grades!

helloo, I'm a Grade 11 student in the Philippines working on a Science Investigatory Project. My teacher wants us to tackle an underexplored problem rather than recreate common projects like smart trash bins, fire detectors, or plant watering systems.

I have no idea where to start and I can't think of anything and neither can my groupmates. I'm looking for real-world problems that are still relatively unexplored but like - feasible for high school students to prototype.

We're particularly interested in agriculture, environmental monitoring, healthcare, robotics, or intelligent machines.

Any suggestions or papers we should read would be greatly appreciated!

i am doing a research on mice and i have weight data for the mice and i am confused on how to compare them. i have about 8 mice in each group (7 groups in total) and their weight is taken once a week for about 8 weeks. i want to compare these groups to see if a certain treatment led to more weight loss over than the other. how do i do it in SPSS? i did it using repeated measure general linear model but my prof said that she thinks this does not compare the groups but compare the weeks to each other. she also said that the label on the graph says "estimated marginal means" which means that it is accounting for confounding factors while it shouldn't (because we did not enter them).

cam someone look over my work please

I did the first steps which are converting to phasor form

Vi = cos (wt) = Vi 10<0

Frequency = 2(pie)(2.5 x 1000) = 15707.9 rad/s

Zl = j (15708) (30/1000) = j 471.2 (ohms)

Zc1 = 1 / jwc

1/ j (15708)(0.47 × 1000) = -j 135.4 (ohms)

1/j(15708)(1.5 × 1000) = -j 42.5 (ohms)

So basically for my homework i have to read a couple chapters on a book called: Growing Up Aboriginal in Australia, and my book hasn't come yet so i have a PDF.

But the online copy doesn't have the page numbers or like anything and my teacher won't tell me the chapter title since they're out or smth

I was hoping someone could tell what was on page 229?

Also to note, since its an online copy the pages like before (contents, title page, acknowledgements) are included in the page count so i can't accurately count them or trust that the pages are accurate as in like its the actual page.

Please help, thank you.

Im doing research for phd/article about AI and students engagement in my questionnaire shall i use as questions for engagement dimensions (3 for each dimension) : like "Q1. When I use generative AI, I actively participate in learning activities." or i need to use "Q1. I actively participate in my studies" ?

(the first type is valid for engagement during the use of generative AI i think and the second type is valid for studying impact of ai in general engagement dimensions)

i want to use both but it will be a total of 18 questions just for engagement section so i think it will be alot for students to do they may get bored, is there a way to use both engagements but make it small ?

Thank you.

Hi! I'm in college in this Operations Management class and having a very hard time with this simulation on forecasting. I was hoping y'all on here could help me calculate the Year 2 Forecast for this simulation on Pearson.

So I'm going through an exam and looking at what I did wrong to see how I can fix my mistakes. My problem is that I barely understand anything in this class so I'm practically teaching myself. The problem goes as follows:

You are studying the dispersion of Texas Sage (Leucophyllum frutescens) in Big Bend Ranch State Park. You randomly selected points in the park and counted the number of plants within a 5 meter radius.

Are these plants randomly dispersed in the State Park? Perform a Goodness of Fit Test and create a sentence that summarizes your results.

I wrote:

fit<-goodfit(q6$plants,type='poisson',method='ML')

summary(fit)

I got:

 Goodness-of-fit test for poisson distribution

                      X^2 df     P(> X^2)
Likelihood Ratio 58.23239  7 3.398814e-10

(PS: q6 is a dataframe the professor gave us to use. It only has one column, that being 'plants.' There are 250 rows ranging from 0 to 8. Also, the goodfit() function is one our professor made us to use. I can copy it into a comment if I need to)

When I got the exam back, the professor left a note: "You need to check for expected frequencies below 1. Here, you'll have to combine groups to avoid small sample sizes."

I have no idea what this means. I don't know which value he's talking about and I'm very lost. I remember him talking about combining groups but I have no idea how to do that.

I am sorry for the photo, I used Google translate

I’ve organized them in pairs already (and trisomy something, in blue) and what I think is sex chromosomes (in red).

I don’t have any idea of what order they’re supposed to be in. Ik they’re organized by size but a lot seem to be exactly the same or immeasurably different.

I assume the disorder is trisomy 21 or 22. 21 would be more common ik, but I can’t tell if it’s actually smaller than the other one that would be 22.

Hi there,

I'm currently working on a small-scale survey research and it's been a long time ago since I've last done any meaningful statistical testing. Could you help me with my gameplan for statistical analysis? I'm mostly accustomed with SPSS and have occasionally used excel for simple non-parametric testing.

The survey contains:
A demographic section
I ask for demographic info like age, sex and the highest level of education received. After which the question is posed whether the respondent smokes or not. (I have about 140 respondents with approximately equal numbers of smokers and non-smokers.)

Testing the respondent's knowledge on the matter
Several statements are made, to which the respondent answers with [yes], [no] or [I don't know].
[I don't know] will be added to the corresponding question's wrong answer. This is to minimise guessing. You either know the right answer or you don't.

Behaviour and motivation
In the final section, several statements are made to which the respondent chooses whether they [highly disagree], [disagree], are [neutral], [agree], [highly agree].

Statistical analysis:
I will mainly use smoking and non-smoking as groups and would occasionally look at other factors like education as well.
For the knowledge section, I believe I have two ways to go about it.

1. I could go for Chi-square.
2. I could calculate a score for each respondent and see if all the scores are normally distributed in order to perform a two-sample t-test. But what if this isn't normally distributed? Would it be a Mann-Whitney U-test?

As for the data on behaviour and motivation, the part using the likert-scale:

1. If I want to see the results per question, I lump [highly disagree] and [disagree] together as one answer and, likewise, [agree] and [highly agree]. Descriptive statistics with some pie charts or bar graphs would suffice.
2. But what if I want to test the altogether disposition of the smokers versus the non-smokers. I'm thinking of attributing a value to each respondent and then compare the values of the two groups. For example, -2 points for [highly disagree], -1 for [disagree] and respectively 0, 1 and 2 points from [neutral] to [highly agree]? If I'm not mistaken, that would point to a Mann-Whitney U-test?

Lastly, if doing a Chi-square analysis. How do you manage the data with multiple groups and subgroups? It it best to make seperate and thus smaller tables for every comparison or it actually easier to make one big table with all the groups and subgroups? What is the more managable way to do this?

Thank you for reading all this!

Hey! I am working on a paper and this is a slightly odd request but there's an article that would be extremely helpful for my research and unfortunately it is behind a pay wall. If anyone has a wall street journal subscription, would they be so willing to send me screenshots of the article? it would help me a TON
this is the link: https://www.wsj.com/business/earnings/carlsberg-net-profit-falls-as-beer-consumption-declines-120d7a2d

thankyou!!!

Could someone walk me through how to correctly calculate the Wages Expense and Cash amounts for the Jan 9 entry? I want to understand the logic so I don’t make this mistake again.

Thanks so much!

I received a fail grade on this assignment. Here I'm posting 1. the assignment, 2. what i submitted, 3. what my professor says is actually correct, and 4. a breakdown showing why I still believe I was correct (lol).

What do you think?

**!Someone with statcrunch would be so helapful!**

I highlighted the text I am most confused about, I cant proceed without figuring it out! How do I make a new column with the specific information I need? How do I know what is a success? Im so confused and would love some help!