Предмет: Физика, автор: lutsiivana

На шматок металу обємом 500 см3, який
занурений у рідину, діє виштовхувальна
Сила 4 Н. Яка густина рідини? будь ласка!!!!!​

Ответы

Автор ответа: xd2ru59zhenya
1

Ответ:

t = 2с

 

g = 10 м/с²

 

найти:

 

h = ?

 

h = gt²/2

 

h = 10м/с² * 4с² / 2

 

h = 40м / 2

 

h = 20м

Объяснение:

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Exercise 1    
Tenses

Put
the verb in brackets in the correct tense. The tenses used are Present Simple,
Present Continuous, Past Perfect, and will. There are also examples of the
infinitive.

 



Example: Yesterday
I went (go) to London. I wanted to do some shopping.




Mrs Hay _________ (drive) along a small
country road when she _________ (see) a man at the side of the road. He
_________ (wave) and pointing at his car.

Mrs Hay _________ (stop) and _________ (ask) 
the man if he was all right.


"My car's broken down," said the
man.

"Where do you want _________ (go)?"
asked Mrs Hay.

"London,"
replied the man.


"Well, I _________ (not go) to London, but I _________
(give) you a lift to the station, if you like." On the way they chatted.


"_________ you _________ (work) in London?" asked Mrs
Hay.


"No, I don't. I _________ (run) my own
business in Oxford.
But today I _________ (have) lunch with a friend in London - we always _________ (have) lunch
together on Fridays. I promised _________ (meet) her at one o'clock."


"There's a train at 11.30. I don't think
you _________ (be) late for your appointment."

When they arrived at the station, a train
_________ (stand) at the platform.

"That's your train," said Mrs Hay.

"You _________ (catch) it if you're
quick."

After the man _________ (get out) of the car,

Mrs Hay _________ (drive away). A few minutes later she realised that she
_________ (make) a mistake: it was the wrong train. She went back to the
station, but the train wasn't there: it _________ already _________ (leave)!
She went into the station and asked at the information desk where the train was
going. "Edinburgh,"
the information clerk told her.


"Where does it stop?" asked Mrs
Hay.

"It's the express service," the
clerk told her.

"It doesn't stop until it gets to Edinburgh.”
Предмет: История, автор: KateDeli