Предмет: Физика, автор: psash9

За 5 мин в вакууме мимо наблюдателя прошло 10 в 20 электронов . Какая будет сила тока этого пучка электронов ?

Ответы

Автор ответа: k2izmailov

Здравствуйте я помогу вам с этой задачей для начала найдите величину заряда в вакууме и умножить на реактивную мощность а потом посмотрите в чемодан там будет лапша которую я вам вешаю на уши

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WHAT’S A FILM WITHOUT POPCORN
Popcorn has been associated with cinemas and films for as long as we can remember. But where did this connection begin and will it carry on into the future?
Popcorn became a popular snack food in North America in the 19th century and was sold at circuses and fairs. No kitchen was needed to prepare it and once the mobile steam owered popcorn maker was invented, it became possible to mass produce the snack. Popcorn had an appealing smell when popped and this attracted many people to buy it.
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Today, popcorn is still economically important to cinemas. Because popcorn is so cheap to make, cinemas make a lot of profits on every box they sell. Yet, there are those that suggest that popcorn in cinemas may be on its way out. In recent years, luxury cinemas have become increasingly popular. These cinemas try to give people a more “exclusive” experience by serving gourmet food in addition to traditional popcorn.
Yet despite this development, it is unlikely that popcorn will vanish completely from cinemas. For many of us, eating popcorn is an integral part of the experience of watching a film. Even when 38 we watch a film on TV at home, we often make ourselves some microwave popcorn. Old habits, it seems, are hard to break!

Task 1. Paraphrase the given sentences so it has similar meaning. Use the given beginnings of sentences.
Example, No kitchen was needed to prepare popcorn.
Preparation _________________________.
Answer, Preparation of popcorn did not need any kitchen.

1. Popcorn was sold at circuses and fairs in the 19th century.
People _______________ [1]
2. So, enterprising salesmen set up popcorn machines outside the buildings.
Popcorn machines _______________ [1]
3. A lot of people bought popcorn on their way into the cinema.
Popcorn _______________ [1]
4. The luxury cinemas serve gourmet food in addition to traditional popcorn
Gourmet food _______________ [1]

Task 2. Answer the questions.
5. How did the cinema owners understand that they could get money ?.
6. How can you explain the saying “Old habits ,it seems are hard to break”.

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