Выбрать правильный вариант. перевод не нужен! 1. when something is in the headlines / articles, it is an important story in the news. 2. when parents are unemployed it is difficult for a family to make ends touch / meet. 3. the cost / price of living in cities like london and tokyo is very high. 4. people prefer to shop in supermarkets because they find a wide range / amount of goods there. 5. the retail / shopping industry includes shops, supermarkets and department stores. 6. in statistics, when a number is valued / weighted it is multiplied by another number to show its importance. 7. the victim / culprit is the person or thing that is responsible for doing something bad. 8. it is difficult for old people to manage / cope with living on a small pension. 9. in maths, an equation / a formula is a sum which is equal on both sides. 10. the speed that something travels at is called velocity / capacity.

1.     When something is in the headlines, it is an important story in the news.

2.     When parents are unemployed it is difficult for a family to make ends meet.

3.     The cost of living in cities like London and Tokyo is very high.

4.     People prefer to shop in supermarkets because they find a wide range of goods there.

5.     The retail industry includes shops, supermarkets and department stores.

6.     In statistics, when a number is weighted it is multiplied by another number to show its importance.

7.     The culprit is the person or thing that is responsible for doing something bad.

8.     It is difficult for old people to cope with living on a small pension.

9.     In maths, an equation is a sum which is equal on both sides.

10.   The speed that something travels at is called velocity.

1.     When something is in the headlines, it is an important story in the news.2.     When parents are unemployed it is difficult for a family to make ends meet.3.     The price of living in cities like London and Tokyo is very high.4.     People prefer to shop in supermarkets because they find a wide range of goods there.5.     The retail industry includes shops, supermarkets and department stores.6.     In statistics, when a number is valued t is multiplied by another number to show its importance.7.     The  culprit is the person or thing that is responsible for doing something bad.8.     It is difficult for old people to cope with living on a small pension.9.     In maths, an equation  is a sum which is equal on both sides.10.  The speed that something travels at is called velocity.

вот тебе 10 вопросов

1.Where does Shakespeare's native town stand on?

On the river Avon.

2.How old was Shakespeare when he died?

He died on his burthday aged 52.

3.What did Shakespeare write?

Comedies tragedies and historical plays.

4.What is Shakespeare also famous for?

He is also famous for his sonnets.

5.What was his wife's name?

Anne Hathaway.

6.Where can we now see Shakespeare's plays?

In the Royal Shakespeare Theathe.

7.Who was the sculpturer that gave the town the most famous Shakepeare's memorial? What was his name?

It was Lord Gower who gave it to the town.

8.Where was great Shakespeare burried?

In Holy Trinity Church.

9.How many children did Shakespeare have?

Three:one son and two daughters.

10.Why do people come to Stradford-upon-Avon?

Because they want to see the place connected with the life of W.Shakespeare.

1. 250 Н/см^2 в СИ – 2500000 Н/м^2, то есть 2500000 Па. Давление жидкости рассчитывается по формуле p = po × h × g, значит h = p/po × g. Давление нам известно, плотность воды равна 1000 кг/м^3, а g – 10 Н/кг. Тогда h = 2500000 Па/1000 кг/м^3 × 10 Н/кг = 250 метров. Сила давления рассчитывается по формуле F = p × S. Подставляя велечины, получаем, что F = 2500000 Па × 0,45 м^2 = 1125000 Н = 1125 кН.

ответ: 250 метров; 1125 кН.

#2. Плотность серной кислоты – 1800 кг/м^3. Для начала нам нужно узнать давление, создаваемое на дно бутылки. Давление в жидкости рассчитывается по формуле p = po × h × g, тогда p = 1800 кг/м^3 × 50 см × 10 Н/кг = 1800 кг/м^3 × 0,5 м × 10 Н/кг = 9000 Па. Сила давления находится по формуле F = p × S. То есть F = 9000 Па × 543 см^2, следовательно F = 9000 Па × 0,0543 см^2 ≈ 500 Н.

ответ: 500 Н.

#3. Здесь нужно воспользоваться формулой F1/S1 = F2/S2, подставляя величины, получаем, что 120 Н/S1 = 1220 Н/488 см^2. Сантиметры в квадрате в СИ можно не переводить. Тогда S1 = 120 Н × 488 см^2/1220 Н = 48 см^2.

ответ: 48 см^2.

#4. Плотность воды равна 1000 кг/м^3. Давление жидкости находят по формуле p = po × h × g, значит h = p/po × g = 280 кПа/1000 кг/м^3 × 10 Н/кг = 280000 Па/1000 кг/м^3 × 10 Н/кг = 28 метров.

ответ: 28 метров.

#5. Поясню условие задачи. Мы создаём некоторое давление воздуха с поршня, которое передаётся, по закону Паскаля, во всех направлениях, поэтому действует на поверхность камеры. Силу этого давления на поверхность камеры и требуется найти.

Давление находят по формуле p = F/S. Значит p = 30 Н/4 см^2 = 30Н/0,0004 м^2 = 75000 Па. Теперь можно найти силу давления на камеру, которая рассчитывается по формуле F = p × S = 75000 Па × 20 дм^2 = 75000 Па × 0,2 м^2 = 15000 Н = 15 кН.

ответ: 15 кН.

Забыл написать <<Дано>>, но думаю, что ты поймёшь.

Объяснение: