Предмет: Физика, автор: obesyanka

СРОЧНО ДАЮ 100 БАЛЛОВ ​

Приложения:

Ответы

Автор ответа: DedStar
0

Ответ:

Объяснение:

Задача 1

U = 20 В

I = 2 А

R = U / I = 20 / 2 = 10 A

Задача 2

R = R₁·R₂ / (R₁ + R₂) + R₃ + R₄ = 4·4 / (4 + 4) + 1 + 5 = 8 Ом

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Українська мова, автор: garmidernatash
спільнокореневі слова до слова вересень
1 год назад
Предмет: Русский язык, автор: andrew123425
составить предложение из слов источник весна
1 год назад
Предмет: Английский язык, автор: klubnikaalinka
ПОМОГИТЕ, ПОЖАЛУЙСТА, СДЕЛАТЬ ТЕСТ ПО АНГЛИЙСКОМУ ЯЗЫКУ
I. Выберите соответствующую форму глагола “to be” в Present Simple, Past Simple или Future Simple.
1. … she single? – I … afraid I don’t know.
a. Is / are b. Is/ am c. Is/ is
2. Sorry, I … not at your party last night. I … very busy.
a. was/ was b. am/am c. was/were
3. Where … you now?
a. am b. is c. are
4. Where … he last night?
a. is b. was c. were
5. Hurry up! You … late.
a. will be b. were c. is

II. Выберите соответствующую форму глагола “to have” в Present, Past и Future Simple.
1. … you … children? – No, I am too young for children!
a. Do, have b. Did, have c. Will, have
2. Last year he … no job. Now he is a successful TV presenter.
a. had b. has c. will have
3. I think, we …a holiday in Spain this summer.
a. had b. will have c. have
4. Next year she … a better job.
a. have b. will have c. has
5. Tom … a very nice car, but he wants a new one.
a. has b. will have c. have
III. Выберите соответствующую форму глагола во времени Present Simple (утвердительные предложения).
1. I often … films online.
a. watch b. watching c. watches
2. She … English three times a week.
a. studying b. study c. studies
3. Every morning at 9 he … at work, … his computer and … a cup of coffee.
a. arrive/start/have b. arrives/starts/has c. arriving/starts/has

4. I … to get a well-paid job.
a. want b. wanting c. wants
5. We are ready for the exam. We … all the answers.
a. know b. knows c. knowing
IV. Выберите соответствующую форму глагола во времени Present Simple (отрицательные и вопросительные предложения).
1. How … you usually … to work?
a. do, get b. get c. does, get
2. … he … English?
a. Do, study b. studies c. Does, study
3. They … at night.
a. do not work b. does not work c. not work
4. I … to the radio at work.
a. do not listen b. not listen c. does not listen
5. He … my name!
a. do not know b. does not know c. not know

V. Выберите соответствующую форму глагола во времени Past Simple (утвердительные предложения).
1. They … to Italy last summer.
a. go b. goes c. went
2. He … too much cake at the party last night.
a. eat b. ate c. eaten
3. We … at a wonderful hotel last summer.
a. stayed b. stay c. staying
4. They … their house four years ago.
a. buy b. buying c. bought
5. I … an interesting TV programme last night.
a. see b. saw c. seen

VI. Выберите соответствующую форму глагола во времени Past Simple (отрицательные и вопросительные предложения).
1. Why … you … to Alaska for your last summer holiday?
a. did, travel b. do, travel c. does, travel
2. I … what to say, so I said nothing.
a. not knew b. did not know c. does not know
3. We … yesterday, we had a party.
a. not worked b. do not work c. did not work
4. I am afraid, when I told her the truth, she … a single word.
a. did not believe b. does not believe c. do not believe
5. When … you … about his wedding?
a. found out b. did, find out c. do, find out
VII. Выберите соответствующее вопросительное слово.
1. … do you want to go on holiday? – I want to go somewhere warm and sunny.
a. Where b. What c. How many
2. … do you usually have for breakfast? – I usually have a sandwich and a coffee.
a. Where b. What c. How many
3. … do you usually get to work? – I usually take a bus.
a. Where b. What c. How
4. … do you want to study English? – I want to study English to get a better job.
a. Why b. What c. How many
5. … students are there in your group? – There are 25 students in my group.
a. Where b. What c. How many
1 год назад
Предмет: Литература, автор: slaapwandelaar
Литература
Все сборники Блока
Срочно
8 лет назад
Предмет: Физика, автор: Amkap
1. При напряжение 3,6В на концах проводника сила тока в цепи равна 40мА. Какая сила тока будет в цепи, если напряжение увеличить до 6,4В?
2. При напряжение 110В , подведённом к резистору , сила тока равна в нём 9 А. Какова будет сила тока в резисторе, если напряжение на нём увеличить на 15В?
8 лет назад