Задача №2.33

Условие

Для рамы, изображенной на рисунке, определить опорные реакции RA и RD, возникающие при действии горизонтальной силы P, приложенной в точке B. Весом рамы пренебречь.

Решение




Предыдущая задача №32
Электрический провод ACB натянут между двумя столбами так, что образует пологую кривую, стрела провисания которой CD=f=1 м. Расстояние между столбами AB=l=40 м. Вес провода Q=0,4 кН. Определить натяжения провода: TC в средней точке, TA и TB на концах. При решении задачи считать, что вес каждой половины провода приложен на расстоянии l/4 от ближнего столба.
Следующая задача №34
В двигателе внутреннего сгорания площадь поршня равна 0,02 м2, длина шатуна AB=30 см, длина кривошипа BC=6 см. Давление газа в данный момент над поршнем равно P1=1000 кПа, под поршнем P2=200 кПа. Найти силу T, действующую со стороны шатуна AB на кривошип BC, вызванную перепадом давлений газа, если угол ABC=90°. Трением между поршнем и цилиндром пренебречь.
Источник: Решебник Мещерского 12 класс
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1.1
1.2
1.3
1.4
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2.1
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3.1
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19.1
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24.1
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27.1
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28.1
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31.1
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32.1
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33.1
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38.1
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39.1
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43.1
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46.1
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47.1
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48.1
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49.1
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53.5
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54.1
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55.2
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56.7
56.9
ПравообладателямПользовательское соглашениеПолитика конфиденциальности • Контакты: e-mail: helplearn@yandex.ru