Предмет: Физика, автор: zakirovbobur28

ПОМОГИТЕ СРОЧНО! Определить расстояние между двумя точечными зарядами 11 мкКл и -11 мКл, если сила их взаимодействия равна 9Н.

zakirovbobur28: Могу еще 15 баллов скинуть

Ответы

Автор ответа: Psycho24

Ответ:

Объяснение:Ответ:0,34785м или 0,35м

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12. Match the phrasal verbs (1–5) with their definitions (A–F). One definition is extra.
1) look up A) if two or more people do it, they like each other and are friendly to each other
2) warm up B) to start doing a particular job or activity
3) take up C) to try to find a piece of information by looking in a book or on a computer
4) fight back D) to defend yourself when someone attacks you or causes problems for you
5) get through E) to succeed in talking to someone on the phone
F) to prepare yourself for a physical activity by doing some gentle exercises and stretches
11. Match the questions about skateboarding (1–5) with the answers (A–F). One variant is extra.
1. Who invented skateboarding?
A) There are skate parks in lots of towns and cities. They are special places for skateboarding. You can practise jumps at skate parks and meet other skateboarders.
2. Where can you go skateboarding?
B) There was a campaign to get skateboarding included in the 2016 Olympic Games in Rio de Janeiro but unfortunately it wasn’t successful. But who knows? Maybe, skateboarding will be in the 2020 games!
3. When did you start skateboarding?
C) I live in the city and there’s a skate park near my house. When I was eleven, my dad gave me a skateboard for my birthday and I spent the summer skateboarding at the skate park. I love the freedom and speed. When I was a child, I rode my bike every day, but I never ride it now.
4. Is skateboarding dangerous?
D) At the moment, the fashion is for skateboarders to wear tight jeans or black trousers and a T-shirt or check shirt. Baseball caps and hats are popular too.
5. Are there skateboarding competitions? E) Skateboarding began in California in the 1950s, but we don’t know who the first person to go on a skateboard was.
F) All skateboarders fall off their boards but fortunately most injuries are minor. It’s a good idea to wear a helmet to protect your head.

13. Match the beginnings of the expressions with the endings. One variant is extra.
1. I don't agree A) for any inconvenience caused.
2. Trains may be subject to delay – we apologize B) to him.
3. I don't know what I'd do if anything happened C) in raising public awareness of the issue.
4. The campaign has certainly succeeded D) with hunting.
5. Your hair and eyes remind me E) at me.
F) of your mother.
14. Match the prefixes (1–5) with the words (A–F) to make their opposites. One variant is extra.
1. dis- A. responsible
2. il- B. logical
3. ir- C. polite
4. im- D. lucky
5. in- E. honest
F. appropriate
15. Match the columns to make correct word combinations. One variant (A–F) is extra.
1) upset A) throat
2) twisted B) stomach
3) heart C) poisoning
4) food D) attack
5) sore E) ankle
F) nose