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Стальная проволока удлиняется на 2мм при действии на нее груза в 32кг Вычислите силу, вызывающую удлинение.
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Предмет:
Физика -
Автор:
jordonherring - 5 лет назад
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Ответы 1
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Fупр. = Fт.kx = mgk = mg \ xk = ( 32 * 10 ) \ 0,002 = 160000 Н\мF = kxF = 160000 = 0,002 = 320 Н
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Автор:
esiquiofox - 5 лет назад
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Помогите пожалуйста сократить текст к 10 предложениям(как сможете сократить, желательны было хотяб 10 и меньше.)
Before I started high school my mom kept bugging me about which extracurricular activities I was going to choose. I really didn't know what the dig deal was. But now that I'm a senior,I totally understand. I've spent the last three months tilling in college applications, and now I get how important extracurricular activities are. Colleges want to see that you're busy not just in the classroom, but outside as well.
For the last three years I've been very active on the Student Council. This is like student government. Our job is to work with the principal's office to make life at our school better. I'm also the captain of the girls' basketball team. We're not very good, but it keeps me fit and it's a lot of fun.
My friend Tom plays on our soccer team. Now, they're really good! They won the championship in our school division three years in a row, and Tom is being recruited by colleges because he's our star forward.
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But for me, the best of my extracurricular activities is the volunteer work I do at a senior centre. I go in once or twice a week and help in all sorts of ways, like reading out loud to someone or making decorations for a holiday party. Last year I travelled to our state capital to hear politicians talk about new laws for senior care. Because of this experience I'm now thinking about a career in public policy-and that's what I wrote about in my college application.-
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Для выполнения контрольной работы по математике учительница выдала детям двойные листы, которые она выдернула из тетрадей, состоящих из 48 страниц (на одном листе две страницы), плюс обложка, которая не учитывается. Учительница полностью израсходовала две тетради. Сколько учеников в классе? А) 12 Б) 16 В) 24 Г) 47 Д) 48
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