Предмет: Физика, автор: Advance032

Какое количество теплоты поглотит при плавлении медная деталь массой 2.7 кг взятая при температуре плавления?

Ответы

Автор ответа: WiLdToNnY

Удельная теплота плавления меди 2,1·10⁵ Дж/кг
Количество теплоты которую поглотит медная детали при плавлении:
$Q=lambdacdot m=2,1cdot 10^5cdot 2,7=567 000$ Дж

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Прочитай текст, ответь на вопросы по тексту (полный ответ).
People have various attitudes to fashion. Some are indifferent and do not care what they
wear. Others, mostly women, are very choosy about what clothes to wear and like to spend a lot
of money on them. Most people buy ready-made clothes at clothes shops or second-hand shops,
but there are those who like to have their clothes made at the tailor's. There are some people who
dress to the latest fashion even if it does not suit them. It seems to be their hobby to follow the
fashion magazines and see what leading designers present. Fashion concerns not only clothes,
but also hair style, make-up and accessories, such as shoes, handbags, gloves, belts, hats,
jewelry and glasses. Styles, cuts, designs and particularly the length of clothes change very
quickly because dressmaking has become big business nowadays. Fashions often revert to older
styles; what is out of fashion, funny now, may look romantic a few decades later. The way we
dress also depends on our taste, on the season and the proper occasion. In summer we usually
wear light summer dresses, shorts and various T-shirts. The usual summer footwear is sandals.
In winter people wear something warm - trousers, jeans, cardigans and jumpers. People also
wear winter coats and jackets, sometimes even fur coats outside. On special occasions people
usually dress up. When going to a concert or to the theatre, evening dresses and suits are
appropriate. For sports people put on sportswear, such as sports trousers, jeans, shorts, T-shirts
and trainers. The most popular types of clothes with teenagers are jeans or trousers, shirts and T-
shirts of different colours, sweatshirts or pullovers and trainers. Some people do not choose their
clothes to the latest fashion. They wear what suits them, what is comfortable and what they can
afford.
QUESTIONS
1. What does fashion include?
2. What changes in fashion very quickly?
3. How does the season influence clothes?
4. What kind of clothes do people wear on various occasions?

Writing
Choose one of the tasks. Write a topic using the questions. (100-120 words)
Выбери тему, ответь на все вопросы (развернутый, полный ответ), 5 баллов за
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Task.3
Topic. Clothes.
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2. What are some of the strangest fashions you have seen?
3. What do you think of body piercing?
4. Is it comfortable to wear school uniform? Why/Why not?
5. Would you like anything to change in a school uniform? If yes, what would you change?

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