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Определи, какое количество теплоты пойдёт на нагревание от 11°C до 28°C в бассейне, длина которого — 15 м, ширина — 10 м и глубина — 1,6 м. Удельная теплоёмкость воды равна 4200 Дж/(кг·°C), плотность воды — 1000 кг/м³.
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Ответы 1
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m воды =(15м*10м*1.6м)*1000кг/м³=240000кгQ=cm(t2-t1)Q=4200Дж/кг•°С * 240000кг * (28°-11°)Q=17136000000ДжQ=17136000кДж
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Автор:
brett6 - 6 лет назад
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Вариант 3.
1. Вставьте артикль a/an или the там, где необходимо.
Who is ...best player in your team?
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2. Употребите верно личные местоимения в косвенном падеже (me/us/him/her/ them/it).
I don't eat tomatoes. I don't like ....
George is a very nice man. I like ....
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This is my new car. Do you like ...?
I'm talking to you. Please, listen to ....
3. Употребите верно притяжательные местоимения (my/ our/ your/ his/ her/ their/ its).
I know Mr. Watson but I don't know ...wife.
Mr and Mrs Baker live in London. ...son lives in Australia.
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This is a beautiful tree. ...leaves are of beautiful color.
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Sarah ...a car. She goes everywhere by bicycle.
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Дополните предложения глаголами из списка, употребив их в Present Simple в утвердительной, отрицательной или вопросительной форме.
Speak open read use watch like enjoy drink talk go
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In Britain the banks usually ...at 9.30 in the morning.
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...you ...TV a lot?
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I never ...coffee.
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How often ...you ...to the theatre?
Дополните предложения глаголами из списка, употребив их в Past Simple в утвердительной, отрицательной или вопросительной форме.
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10. Перепишите и письменно переведите текст на русский язык. Сделайте лексико-грамматический анализ текста: 1) Выпишите из текста существительные, употребленные с неопределенным артиклем, переведите их. 2) Выпишите предложения с глаголом `tobe' в роли сказуемого во временах группы Simple. 3) Подчеркните предложения, где используются местоимения some, any, no и их производные.
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I think he's wonderful. He's very strong and he's never ill. He's really active, and although he's retired he works hard in our garden and in his fields. He's young at heart and friendly to everyone. People who meet him always love him.
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