Предмет: Физика, автор: MakkDuo

Народ дана формула
Но надо найти I2 как тогда изменится изначальная формула

Приложения:

Ответы

Автор ответа: elimofetoyp1j9
0
I2=F*r/(k*I1*L)
Левую часть умножаем на знаменатель правой части и делим  на числитель правой  без I2
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Предмет: Английский язык, автор: makcimgundyrin
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Test 1
1. Use the words in the box to form new words that fit in the gaps (1-5) in the text.
Jodelle Ferland was 6 years old when she got both a Young Artists Award and
Daytime Emmy award. She is the youngest (1)__________ in the award’s history. (1) ACT
She got the award for her (2) _________________ in the TV show Mermaid. (2) PERFORM
Her (3)______________ are great. Jodelle started her acting career at the age of (3) ACHIEVE
two. She has played in many TV shows and films.
All three of the Ferland children are talented. Her sister Marisha is going to
be a (4) _________________ . And her brother Jeremy wants to be a famous (4) DESIGN
(5) ________________ . But as their mother says, Jodelle was always the best. (5) MUSIC
Jodelle is sure that to be the best she needs to work hard and take her work
(6)_________________. (6) SERIOUS

2. Report what the children say using the verbs in brackets.
Ted: “Every term we have a lot of tests in Maths .” (to say)
Mike: “I will take part in different activities this month!” (to be glad)
Jenny: “I have no friends at the new school.” (to worry)
David: “PE is very useful because we do different exercises and play games.” (to think)
Laura: “The holidays are over. And I have to get up early again” (to be upset)

3. Write the verbs in brackets in the Past Simple, Past Progressive or Past Perfect.
1. The pupils ________ (not understand) the new rule last Monday.
2. Dad wasn’t at home when I came back. He _____ (go) out twenty minutes before.
3. Yesterday we _________(go) to buy a present for our Mum.
4. Her mother __________ ( work) from 8 am to 5 pm yesterday.
5. We had no car at that time because we _____ (sell) our old one.
6. We____________ (to play) computer games the whole evening on Sunday.

4. Fill in the gaps in the sentences with the words from the box.

Record, championship, gold, hard, a professional, ambition, bronze, properly, go in for, achievement

I (1)……………. skiing and my greatest (2)…………….. was when I was in the British team at the European (3) …………………. . Our team won the (4)………….. medal. My (5) …………………. is to win a (6) …………….. medal, but I have to work (7)…………… to get what I want.
My brother trained (8)………………… and set a new national (9)…………… for the swimming. He wants to be (10) ………………………. .