1. Плоскодонная баржа с осадкой 1,5 м получила пробоину в дне. Площадь пробоины ...

August 2022 1 13 Report

1. Плоскодонная баржа с осадкой 1,5 м получила пробоину в дне. Площадь пробоины 0,05 м2. Сможет ли матрос, масса которого 80 кг, перекрыть воде доступ в трюм, став на закрывающую отверстие пластину?

2. На какой глубине давление воды будет равно 200 кПа? 5) В мензурке находятся три слоя жидкостей (ртуть, вода и машинное масло) толщиной по 10 см. Каково давление на дно?

Answers & Comments

ban160684

Ответ:

p=pgh

p=1000*10*1,5=15000Па 500см2=0,05м2 с какой силой вода давит на отверстие в дне баржи? p=F/S

F=ps

F=15000*0,05=750H вес матроса-? с какой силой он прижимает пластину? P=gm P=10*80=800H 800H>750

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Question Tags1. Their dogs don't run fast, ...1) doesn't they?2) do they?3) don't they?2. Yor parents aren't from Britain, ...1) aren't they?2) do they?3)

Question tags1. You have never been here before, _?1) have you2) do you3) haven't you2. Sam likes reading, _?1) can't he2) does he)

put the verbs in brackets in the present perfect continuous1 i wait here for two hours2 my friends

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Question Tags1. Their dogs don't run fast, ...1) doesn't they?2) do they?3) don't they?2. Yor parents aren't from Britain, ...1) aren't they?2) do they?3)

Question tags1. You have never been here before, _____?1) have you2) do you3) haven't you2. Sam likes reading, _____?1) can't he2) does he)

put the verbs in brackets in the present perfect continuous1 i wait here for two hours2 my friends

3y2x72xy5

Question Tags1. Their dogs don't run fast, ...1) doesn't they?2) do they?3) don't they?2. Yor parents aren't from Britain, ...1) aren't they?2) do they?3) are

2x37y2214x614x3y249y42 4x628x3y249y43 4x228x2y27y24 2x628x3y27y4

vypolnite umnozhenie a1a22a1

najdite znachenie vyrazheniyax3x4x5x6

uprostite vyrazhenie 3xy2xy6x2

predstavte v vide mnogochlena standartnogo vida 32a4a7

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Question tags1. You have never been here before, _?1) have you2) do you3) haven't you2. Sam likes reading, _?1) can't he2) does he)