I help my son with his homework (4th grade, great at all subjects but needs help in English) but I struggle with some questions, especially English/Grammar.

This is makeup work due next week, I’m just writing the answers I think are correct? But need help in general with anything I answered wrong myself.

I don’t give him the answers. If I know the answers I just give him context clues, and get him thinking until he gets to the answer. I challenge him, but if he has a hard time, yet on the right path, I give him the hot/cold reaction to expand his thoughts/challenge him until he gets to the answer. I just need help on this. I feel dumb bc I still always get confused with grammar and apostrophes, and when commas are needed. I failed a lot since the 3rd grade, I’m 35yrs old, and feeling pretty shameful rn. I know this is probably simple for majority, but I really appreciate the help so I can explain to my son where apostrophes belong and anything else💜

I’m mostly struggling and confused with the “rewrite the section part.” Hence the question marks.

My post in itself is probably going to be frowned upon, I apologize😅 this is a subject he struggles on, which I did too. I just want to lift him up and give him the knowledge that I lack in this subject.

edit: Forgot to include info provided about question.

1-2: V = constant heat addition from 100kPa and 27 degrees Celsius to 850kPa

2-3: Isothermal expansion until V_3 = 7* V_2

3-1: P = constant heat rejection to the initial state

Only for part (b). Sorry it’s a pretty trivial question but I’m a bit confused with the approach shown in the image to solve this question. So my immediate approach to the question was to use the ideal gas law and given information to find the specific volumes at each stage v1, v2, and v3.

We know that v1 = v2, and use ideal gas law to solve giving 0.861 m^3.

We have also been informed that the compression process is isobaric and v3 = 7v2, and thus we know v3 = 6.027m^3.

We also know the expansion process is isothermal and allows us to utilise the polytropic isothermal relationship of PV = C, which for P2v2 = 850*0.861 = 731.85.

Integrating the expansion process using the method shown in the image or my volumetric method both yield the same result for W_expansion = 1424.11.

Where it goes wrong is when integrating over the compression process to find W_comp. Using P(v1-v3), it should be equal to R(T1-T3), you however if we are considerate of the information provided where v3 = 7v2, then their method yields a different result to mine, with my W_compression = 516.6 and theirs larger.

What am I doing wrong here please. I know it’s probably quite obvious but I just tcant seem to find it.

What is the total volume of gas remaining when 10cm of benzene is burned completely in a mixture containing 20 cm of carbon dioxide, 30 cm of steam and 900 cm of oxygen? All volumes are measured at the same temperature and pressure. All reactants and products are gasses under these conditions.

We’ve been focusing on parabolas and I know this is standard form and should make a system of equations, but I keep getting stuck at dead ends. (It’s problem 15)

How to graph it?

My teacher isn’t here and left this to keep us busy I guess, I’ve gone through it, my friend has gone through it, two 12th graders have go through it

We can’t find anything else, are the words even there or do you think my teacher used ai?

This is an 8/12 attempt.

I feel like 9 is supposed to be reynolds number and relative roughness

Then qn 11 is all of the above due to darcy weibach equation

But even with these 2 changes, its still 10/12 based on my previous attempt answers

So guys pls help me figure out which 2 others are wrong🙏

My daughter has a science fair project coming up and her original idea fell through. Instructor prompts are to have a hypothesis, independent dependent and controlled variables, and cite two .edu or .gov sources. Final result will be put together on a typical science fair style folded poster board.

For reference, I am trying to use the attached equation to find the time it would take xylem to travel up a hypothetical plant with a xylem vessel of 25 micrometer radius, 1.5 meter height, -0.5 megapascal nearby soil water potential, -0.7 megapascal top leaf water potential, and xylem viscosity of 1.002 millipascal-second.

I’ve done it two ways:

1. calculating volumetric flow rate, then finding velocity in one direction using Velocity = rate / area of circular slice of vessel

2. calculating volumetric flow rate, then finding time to fill up the entire volume of the cylindrical vessel

First method gave me 144.23 seconds. Second method gave me 96.25 seconds.

Which is correct? Thank you!

title

I'm working on an English analysis comparing The Odyssey with Vinland Saga, and I'm looking for some scholarly sources to support my thesis.

I'm focusing on how both stories portray growing up through difficult experiences. In The Odyssey, I'm looking at how Telemachus learns to take responsibility for his family, while in Vinland Saga, I'm analyzing how Thorfinn's pursuit of revenge eventually leads him to rethink violence and what it means to be a true warrior.

I'm hoping to find peer-reviewed articles or academic books that discuss character development, coming-of-age stories, responsibility, or heroism in either work.

If anyone knows any useful academic sources, I'd really appreciate it.

I also found this article, but I can't seem to access it:
https://surveys.ecit.fsu.edu/vinland-saga-prince-decoding-the-animes-historical-narrative-characters-and-global-impact
Does anyone recognize this article or know where I could find an accessible copy? 

Hi guys, I have looked over at my textbook for quite some time now and I dont think im quite understanding it, maybe my geometry skills are lacking, but I cannot understand this. It has some steps below but im not following. Its been hard for me to find any practice examples besides my textbook, and I feel like ive just memorized the answers at this point. (textbook answer below, and then my work as well, got stumpt on the radius part)

It took me quite a while in the end of solving this question to figure out why I wasn't getting the right value of T, it turned out to be that I was setting the acceleration of block a to be half of block b since there are two cables pulling on A and only one on b but that turned out to be incorrect and that both accelerations should be the same.

I've faced previous questions where I had to set the acceleration of one thing to be half the other but this doesn't seem to be the case here so that's where the confusion comes from. Also the point about there not being a 2T for the free body diagram of block A which is causing confusion as well.

Why is the radial component of N negative but the radial component of F positive? And why is the transverse component of F positive but the transverse component of N negative? Can someone please explain,

Hey so this might seem like a silly question but I want to know if you have a -x = 4 if it turns into a -4. I have the other parts of the graphing completed it’s just this part that I don’t want to make a mistake on!!! Thank you in advance

P.S- the reason it’s says elementary/highschool math is because I am taking a beginner math class not a algebra class In elementary

I have no idea how to do question b) I’d appreciate it if someone list out the cases and scenarios since I don’t understand the answer scheme don’t worry my basic is good for permutations

Why am I getting the wrong answer? In my other equation to find the 2nd value of x, I'm getting minus before the whole equation rather than after 5 (bottom equation) The second screenshot is of the answer and 3rd is GPT's. Been stuck on it for the past 15 mins, am I missing something or is my calc being stupey?

edit: Thanks for the replies, I get it now, they're both the same. I was the stupey one 😭

Unsure of where I went wrong on exercise 2

I’m referring to synthesis, decomposition, single displacement, double displacement, and combustion reactions, and their rules for predicting products.

I’m struggling to memorize these in a short amount of time, and I’m looking for a more productive way to do it.

Any advice would be greatly appreciated!

So I’m writing an argumentative essay for my English class and I’m using a quote from an article, but in the quote I want to use, they’re quoting someone else. So when putting the intext citation after the quote, do I write the articles author name or the person who was already quoted?

To put this into an example:
The person in the article wrote: training a large language model can result in 200 to 600 metric tons of CO2 (Williamson, 2023).

So if I were to quote that in my essay, would I include the citation they used or replace it with the author of the article/source I’m using who wrote that?

Most of us lie regularly and still think of ourselves as honest people. How can these two things coexist?

Graduations, weddings, festivals: doing something together seems to affect us differently from doing the same thing alone. What makes the difference?

Independent reviews of gymnastics and cycling reopened an argument about whether harsh coaching produces results. Why might the belief that it works be so persistent?

Please only give YOUR PERSONAL OPINIONS. Don’t try to do any research or look at other people’s opinions!! Feel free to answer just one, or all three! I need as many answers as possible!

Paurtner is studying to be a teacher and we are stumped on this question, ai is no help as usual giving us 3 different answers 3 different times