Предмет: Физика, автор: Аноним

Потенціальна енергія кульки на висоті 1,2 м дорівнює 6 Дж. Знайдіть масу кульки в грамах.

Ответы

Автор ответа: 1Manka1
2

Дано:

Еп=6Дж

h=1,2м

Знайти:

h-?

Еп=mgh→m=Eп/(gh)=6/(10*1,2)=0,5кг=500г

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ПОЖАЛУЙСТА, ПОМОГИТЕ!!!
1.Прочитайте внимательно текст, устно (для себя) переведите.

2. Выпишите из текста глаголы в Past Simple Tense (в прошедшем простом времени) по образцу. Воспользуйтесь для этого таблицей неправильных глаголов.

Образец:

was - Past Simple, от глагола to be (быть, являться, находиться), переводится как был, являлся. Неправильный глагол.

stopped - Past Simple, от глагола to stop (останавливать(ся), прекращать(ся)), переводится как остановился. Правильный глагол.

walked - Past Simple, от глагола to walk (ходить пешком, гулять), переводится как гулял. Правильный глагол.

bought – Past Simple от глагола to buy (покупать), переводится как купил, покупал. Неправильный глагол.


A Day in the Life of Simon Carrot


Part I


First I must tell you about myself. I am thirteen and I am in the third form at a school in Manchester. I have a little sister Bess, who is very silly and I have a very clever dog. His name is Pal.

What a bad day Monday was for me! I woke up late and did not have time to eat my breakfast. I did not see my books and my school cap in their places. I looked in my room. I looked in the diningroom. Then I looked into the bathroom and saw my books there. Then I saw my dog Pal under the table with my cap. I put my books into my bag, took my cap and ran very quickly to school.

The first lesson on Monday is maths. What a difficult subject to begin the week with! Mr. Green, the mathematics teacher, took our homework. He saw that my exercise-book was dirty. He gave me a bad mark for it. Then he gave us tasks to do. I sit behind Jane, who is fat and silly. But she likes maths very much and has good marks for it. I asked her to tell me the answers, but she didn’t want to.

The second lesson on Monday is French. I like French. It’s nice to talk to your friends at the lesson in another language. Then it was eleven o’clock — time for break. Nell gave me a piece of cake to eat with my milk and then gave me her homework to copy. I think Nell likes me, and she is a nice girl.

After break we had two lessons of Latin! They are bad lessons: I do not like Latin. I talked to Nell at the lesson and Mr. Williams gave me a hundred words to write in my exercise-book after school. I wrote those words at the lesson when the boys and girls read a Latin book.