Nickolai

Can someone give me an easy explenation as to how alternating current is made? I don't want to hear about how an AC generator makes it or how a magnet going in the middle of a coil of wire, I just want to know how is it made. What happens for electricity to be made and why does that electricity become an alternating current.

My monitor can display 144hz, but the highest option available on both settings/system/monitor/advanced settings and NVIDIA control panel is 60hz. Why?

An air cylinder has inner diameter of Ø25 mm, while the rod has a diameter of Ø10 mm. The lenght of the cylinder is 200mm. The stemple has a thickness of 8,0 mm and is shoved 95 mm in the cylinder:

a. How big is the volume at the left side of the stemple?

b. How big is the volume of air at the right side of the stemple?

I am only interested in the answer so I can see if it's the same as what I got, but you can add how you solved it if you want.

This is from my math submission, and I am wondering if I am correct

https://ibb.co/0ZFsRkf

https://ibb.co/HT0X0qK

These are links to the pictures of the task from my math submission

The answers on the tasks has a line under them

Translation is:

An air cylinder has inner diameter of Ø25 mm, while the rod has a diameter of Ø10 mm. The lenght of the cylinder is 200mm. The stemple has a thickness of 8,0 mm and is shoved 95 mm in the cylinder:

a. How big is the volume at the left side of the stemple?

b. How big is the volume of air at the right side of the stemple?

Does intersex people have 30% male and 70% female DNA and other things always (for example), or can they have 50% of female and 50% of male DNA and other things?

I need information, either a link or you just tell me, on how the ritual the jews are done when, for example, a plate that has been used for meat and another plate that has been used for dairy, is mixed.

For some reason, somehow, my age on my gmail account has changed and i cannot access it to change the age. Anyone know how to fix this?

I need to use geogebra to do some homework in math and i need to find the top point of a fuction. It is a straight line that ends on 150 (x) and 47 (y) but i want to set a point there but it is always comma something near what i need and when i try to use the tool to find top point it just says undefined. What do i do?

I have to write a 5 page document where i compare a book and the movie to the book (i chose Percy Jackson and the lightning thief) and one of the things needed is environment. I really need guidance on what to write here because i do not know how i write about that. Do i write all the different environments like city, forest, etc and compare the book and the movie or the places like summer camp with greek mytholigy theme and medusas house with sculptures or what? I would appriciate tips, a "guide" or anything that would help. English is not my first language. 

I am have to write a 5 page word document where i compare a book and a movie (i chose Percy Jackson and the lightning thief and one of the things i have to compare between the movie and the book is environment. I know that is it litreally what it is saying, but i just need guidance how what to write. If you can tell me some tips, give me a "guide" or even write about environment and compare between the book and the movie then i would appriciate that. English is not my first language so i am sorry if i have any spelling mistakes.

I am feeling down and i pretty much have since halfway into 8th grade i think (I am halfway into 10th grade now) and i have only found two or something websites but either it cost money or i never find anyone when it is searching for people i can talk with. I do not want to talk with a therapist.

I am doing equations and i understand normal equations with plus, minus, multiplication and dividing, but i do not understand anything else like both plus and minus in one math problem or something else. Please help and try to teach me like i am a 12 year old that barely have started understanding equations (i am 15)

I go in 10th grade. We have to film ourselvs showing our powerpoint. I am done with most part of my powerpoint, but i need to include what effect The Beatles have had. What is the biggest effect The Beatles have had an effect on? I just need something short. I am talking about 1 slideshow.

I am making a powerpoint on The Beatles, and i need to include the effect The Beatles had on rock and roll and pop (and other things if you know about something else that it had a important effect on). 

I keep getting sent to websites like unibet and porn dating sites or something on my phone. It happens like 4 times an hour or something i think. I have blocked all notifications from google and other stuff and i do not have any apps that i think is doing it. I need help because it is so annoying and i cannot stop it!

I am installing the game GTA 5 on steam on my pc, but it says 4 days until completion, switching to 3 days and 23 hours and then back and other stuff. How can i free up space to make it go way faster? I get the fun from playing the game, not installing it xD

I have gone to settings then to storage and automaticlly cleaned up my pc or something and deleted temporarly files and other stuff, but i really need to know how i can get alot more space on my pc, because apparently 170GB of my C drive is apps and stuff even tho i do not know what is taking up so much and other stuff. Please help!

When i click on what is taking up space on my C drive and i click on apps and stuff that says it is taking up 170 GB of space on my C drive on my computer, the things that it shows is not in any way close to 170 GB. Can someone tell me why or how i can find out or at least how i can clean up ALOT of space on my pc. I have already deleted temporarly files, cleaned up the trash can and other things. Is it something critical i am missing or what is it?