Предмет: Физика, автор: Иришка131

имеется ли в медной детали пустота, если в 20 см3 содержится 100 г

Ответы

Автор ответа: larisaorlova65

0

ρ=m/V
ρ=100г/20 cм³=5г/см³
Проверяем значение плотности по таблице: ρ=8,9 г/см³
Вывод: есть пустота, так как плотности не совпадают

Автор ответа: Иришка131

0

спасибо

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: gulfajruzaliakparov

b) 6.2.8.) What is this extract from The Time
Machine about? How are the pictures related
to it?
Listen to find out.
D VIDEO
The Time Machine
I felt I was going mad. I ran around hitting the bushes.
Crying and shouting, I went to the big stone building. It was
very dark inside. I found a hall with little people sleeping in
it. I woke them up and shouted, 'Where is my Time Machine?'
Some of them laughed loudly but most of them were scared.
It was bad to upset them, so I quickly ran outside. I was very worried. For hours !
looked for my Time Machine. At last I was so tired I fell asleep on the ground. When
I woke up there were birds near me on the grass. I was calmer now but what if
couldn't find the Time Machine? I could stay there and build another Time Machine
but it would be exhausting.
I decided to explore the area. I found an old house and went inside. It was very dark
and I couldn't see well. Suddenly, I stopped walking. There was someone in the
house. I could see the eyes shining in the dark. I put out my hand and touched
something soft. The eyes looked away and something grey ran past me fast. It
looked like an ape with red eyes and long arms. I followed the creature carefully.

6 лет назад

Предмет: Математика, автор: aliamuhambetkalieva0

пжжжжжж.ж решите пжжжжжжжжжжж

6 лет назад

Предмет: Математика, автор: Аноним

ПОМГИТЕ ТОКО ПРАВИЛЬНО ПЖПЖАЖПЖЖПЖПЖ

6 лет назад

Предмет: Математика, автор: zamo58

помогите решить эти премеры 407 3 40 51 надо чтоб получилось 399

9 лет назад

Предмет: История, автор: atyulya

Почему поставили памятник Сергею Кирову

9 лет назад