Предмет: Физика, автор: dvityr

Даю 10 баллов срочно Брусок из н материала движется по столу, коэффициент трения по которому равен 5 сила трения равна 200Н. Объем бруска равен 0.5 м^3. Чему равна плотность бруска

dvityr: срочно ответте

vvbarashkovsky: в вашем условии ошибка

vvbarashkovsky: не может быть коэффициент трения равен 5

Ответы

Автор ответа: pyrrhula

Ответ:

Fтр=k*N=k*mg=k*pV*g

p=Fтр/V*g*k=200Н/0,5м^3*10Н/кг*5=8кг/м^3

Объяснение:

pyrrhula: ускорение свободного падения, по-другому в м/с^2

dvityr: СПАСИБО

dvityr: а как ты ее вычислил?

pyrrhula: это постоянная величина

vvbarashkovsky: а вас не смущает что таких твердых веществ у которых плотность равна 8 кг/м3 нет ?

vvbarashkovsky: а вы знаете что коэффициент трения не может быть 5 ?

dvityr: задача ест задача

vvbarashkovsky: дык не надо решать задачи с неверным условием

dvityr: кто тебе сказал

dvityr: мне задали, я решил

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Business organizations

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There are various types of business organization which operate in the private sector:
A business run by a sole trader has just one owner, who is entirely responsible for all the company's business affairs. This type of organization has certain advantages and disadvantages.
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