Предмет: Физика, автор: dan5uk

Завдання 1Пж дуже треба
Повітря в кімнаті об'ємом 60 м нагрілося від 10 C до 20 °С Яка маса
води при цьому пройшла крізь опалювальну систему, якщо вода в ній
охолола від 60 °C до 58°C

Ответы

Автор ответа: ImperorII

Відповідь:

Пояснення:

Q1=Q2

Q1=c1m1Δt1

Q2=c2m2Δt2

m1=ρV

c1ρVΔt1=c2m2Δt2

m2 = c1ρVΔt1/c2Δt2 = 92.14 кг

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Предмет: Английский язык, автор: felix1029384756

READING 7th form. Term 2
*A Surprise Party for Gerry*

He was stuck in bed, A cute card, He was feeling rather miserable, A dozen gifts, To tease, A spectacular birthday present
Gerry was feeling very sorry for himself. He had broken his leg, and he was in hospital. He had already been there for three weeks. Worst of all, it was his thirteenth birthday, and he didn’t want to be in hospital for that. He was stuck in bed, and it was boring, boring, boring.
His birthday had started in the same way as the previous days in hospital. At half past ten the doctor came to see him. “Happy birthday, Gerry,” she said. “Can I look at your cards?” Gerry had received cards from his family and a cute one from his neighbours, but not one from his friends. Even Frankie, his best friend, had forgotten him. He was feeling rather miserable. Maybe they didn’t care about him.
At lunch time his mother arrived. She had brought a dozen gifts for Gerry and soon his bed was covered in wrapping paper. His best present was a CD player. “Thanks, Mum,” he said. “That’s just what I need in here.” Things were looking up.
Suddenly there was a lot of noise from outside the door. Then the door flew open, and his whole class walked in. First, they sang “Happy Birthday to You” very loudly and gave him a huge card. Then they crowded round his bed and looked at all his gifts. Next, Frankie’s mother came in with a big birthday cake and paper plates. After that his classmates gave him three CDs of his favourite band. Finally, they sat around his bed and ate birthday cake.
Then Gerry’s doctor came in. “We need some peace and quiet in here,” she teased. “How would you like to go home tomorrow?”
“Wow,” said Gerry. “That’s a spectacular birthday present.”

Task 1. Match.

1. Gerry had been in hospital for three weeks because

2. He was stuck in bed, so

3. Gerry’s family sent him cards, but

4. His doctor came to see him that morning and

5. His mother came that afternoon and

6. His classmates had planned surprise birthday party

7. Gerry was happy because

8. Gerry’s doctor came that after-noon and

a) he felt bored.

b) his friends hadn’t sent him anything

c) gave him a CD player.

d) he had broken his leg.

e)his friends hadn’t forgotten morning and him after all.

f) gave him some wonderful news.

g) saw his cards.

h) brought Gerry a card and some presents.

Task 2. True or False.

1. It was Gerry’s thirteenth birthday.

2. Gerry had received a lot of cards and gifts from his family and neighbours.

3. But Gerry wasn’t very happy.

4. Mum gave him a nice mobile phone.

5. His friends didn’t come to Gerry’s birthday.

6. The doctor said Gerry would go home tomorrow.

Помогите пожалуйста

5 лет назад

Предмет: Информатика, автор: fghgfdf

помогите срочно!! кто сделает в аблице тому лучший ответ!!!!!!!!!!

5 лет назад

Предмет: Математика, автор: mariavolosenko128

Купили двох поросят по 26 кг, трьох- по 22 кг і ще п'ятьох - по 23 кг знайти середню масу куплених поросят