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Помогите пожалуйста решить задачу: пружинка под действием силы 400 Н удленилась на 5 мм найдите жесткость пружины
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Предмет:
Физика -
Автор:
kamoraajm9 - 5 лет назад
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Ответы 3
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Спасибо огромно
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Автор:
ahmedwilkinson - 5 лет назад
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0
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дано CИ
F=400H
∆l=5 мм 0,005м
k-?
Решение
F=k∆l
k=F:∆l=400H:0,005м=80000H:м
Ответ:80000
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Автор:
whitney55 - 5 лет назад
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0
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Fу=kх
k=Fу/х
k=400/0,005=80000Н/м
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Автор:
goobercampos - 5 лет назад
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0
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В равнобедренном треугольнике ABC,
BE - высота, AB=BC.
Найдите BE, если AC=√7,48 и AB=1,4-
Предмет:
Математика -
Автор:
koch - 5 лет назад
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Помогите,пожалуйста)
Young people of Great Britain are mostly like ours. They like to play, to dance, to go in for different kinds of sport, etc. At the same time the youth's attitude to their studies is rather serious. And there is one more characteristic feature of the young people more. They are more independent in their choice of job, profession, for example. Of course, the youth has very large opportunities as for their studies.
Having left a secondary school they go to study at different Universities and colleges. There are many secondary and higher educational establishments in the country where young people can study and get the chosen profession. Many of them try to study at such famous Universities as Cambridge and Oxford.
The youth of Great Britain also has various possibilities to spend free time. Most people in the country work and study for five days: from Monday to Friday. Schools, colleges and Universities are closed on Saturdays and Sundays.
Young workers and students working and studying away from home like to go on excursions to different parts of the country , or they visit their relatives, friends or go home to stay with parents.
Saturday evening is the favourite time for parties, going to the pictures or to the theatre. There are many public holidays in a year in Great Britain, but Christmas Day, Good Friday and Easter are the most popular with the people. Such holidays as Boxing Day and Spring Bank Holiday are also popular in the country.
Besides public holidays there are other festivals, anniversaries and days on which certain traditions are observed. The youth tries to take part in these holidays.
Young people like traveling and they have opportunities to do it. They visit different cities and towns of their Motherland and they also visit different countries during their summer vacations.
But the most responsible duty of the young people, of course, is their studies. They know that their future depends only on their attitude to studies and they do their best to study well and become highly qualified specialists in various spheres of national economy of the country.Level 2
Choose the best variant to complete the sentence.
1) Young people of Great Britain _______ .
a) smoke very much;
b) are very lazy;
c) are mostly like ours.
2) There is one more characteristic feature of the young people________ .
a) they work very hard;
b) they are more independent in their choice of job;
c) they have no opportunities as for their studies.
3) Schools colleges and universities __________ .
a) have a great number of students;
b) are closed on Saturdays and Sundays;
c) provide top students.
4) Saturday evening _____________ .
a) is the worst part of the day for young people;
b) is the best time for wedding parties;
c) is the favourite time for parties.
5) The youth tries ____________ .
a) to take part in ail holidays;
b) to study well;
b) to earn much money.
6) Young people like traveling ____________.
a) but they can't do it because of studies;
b) and they have opportunities to do it;
c) but there are no interesting places to visit.
7) The most responsible duty of the young people ___________ .
a) is to respect old people;
b) is to visit colleges and universities;
c) is their studies.
8) They know that their future depends ___________ .
a) on their attitude to studies;
b) on good job;
c) upon their relatives.
Level 3
Answer the questions.
1) What can you say about the youth of Great Britain?
2) What is youth's is attitude to their studies?
3) Where can young people get the chosen profession?
4) Who works 5 days?
5) What do young workers and students like to do on a free time?
6) What do they like to do on Saturday evening?
7) What holidays are there in Great Britain?
8) What is the responsible duty of the young people? What do they do to achieve it?-
Предмет:
Английский язык -
Автор:
mccullough - 5 лет назад
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Ответов:
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