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Вопрос по физике:
При заполнении баллона газом до давления 1000 кПа температура газа повысилась до 47С . Найти в
кПа давление газа после охлаждения баллона до 7С-
Автор:
jonroth
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Объём не изменяется. Из уравнения Менделеева-Клапейрона находим, что p1/t1 = p2/t2 Отсюда p2 = p1*t2/t1 = 1000 кПа *280К/320К = 875кПаОтвет: 875 кПа
Еще 4 ненужных тебе вопроса, но это важно для поиска
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Вопрос по русскому языку:
Укажи, из каких букв можно составить слоги слияния н - а, у- н , н - н, - н и.-
Ответов: 7
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5 лет назад
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Вопрос по информатике:
Представьте числа в новой системе счисления: 8510 = Х2 = Х8 = Х16-
Ответов: 1
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5 лет назад
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Вопрос по английскому языку:
1
Баллов: 1
________________ rooms has your brother?
Выберите один ответ.
how much
why
where
how many
Question 2
Баллов: 1
I am sorry. I am late. ________________ I come in?
Выберите один ответ.
may
can
must
need
Question 3
Баллов: 1
When ________________ they come back?
Выберите один ответ.
was
were
did
have
Question 4
Баллов: 1
Does it sometimes ________________ in summer?
Выберите один ответ.
snow
snows
snowed
snowing
Question 5
Баллов: 1
Is there ________________ strange in what she is saying?
Выберите один ответ.
no
some
any
anything
Question 6
Баллов: 1
I ________________ walk, there is a bus going there.
Выберите один ответ.
needn't
may be
mustn't
can't
Question 7
Баллов: 1
What’s that music you are ________________ ?
Выберите один ответ.
hearing
listening to
listening
listen
Question 8
Баллов: 1
It _______________ five years since we last went on holiday.
Выберите один ответ.
was
has been
is
have been
Question 9
Баллов: 1
I hope they ________________ my telegram by tomorrow morning.
Выберите один ответ.
receive
will have received
have received
will receive
Question 10
Баллов: 1
________________ your brother speak French?
Выберите один ответ.
Do
can
may
must
Question 11
Баллов: 1
Were you tired after the skiing trip yesterday? - Yes, I ________________.
Выберите один ответ.
do
were
was
did
Question 12
Баллов: 1
Did she ________________ her plan last month?
Выберите один ответ.
fulfils
fulfilled
fulfilling
fulfil
Question 13
Баллов: 1
When ________________ you finish writing your report?
Выберите один ответ.
are
have
is
did
Question 14
Баллов: 1
If it ________________ rain, we'll have the party outside.
Выберите один ответ.
doesn't
won't
wouldn't
didn't
Question 15
Баллов: 1
It is late. I ________________ go home.
Выберите один ответ.
can
must
need
may
Question 16
Баллов: 1
If he ________________ this painting he’ll have no money problems.
Выберите один ответ.
sold
sell
have sold
sells
Question 17
Баллов: 1
The forecast promises such ________________ good weather, but I don’t believe it.
Выберите один ответ.
a
an
the
---
Question 18
Баллов: 1
The clothes are absolutely wet. I should dry ________________.
Выберите один ответ.
theirs
them
it
their
Question 19
Баллов: 1
________________ women over there all speak Chinese.
Выберите один ответ.
this
those
that
these
Question 20
Баллов: 1
________________ you play tennis?
Выберите один ответ.
have
must
can
may
Question 21
Баллов: 1
You ________________ not go out, the lesson is not over yet.
Выберите один ответ.
may
have
can
are
Question 22
Баллов: 1
We shall discuss the results when we ________________ our experiments.
Выберите один ответ.
are finished
will finish
finishes
finish
Question 23
Баллов: 1
The weather is getting worse. It ________________ rain.
Выберите один ответ.
can
must
need
may
Question 24
Баллов: 1
If my advice ________________, I’ll be so happy!
Выберите один ответ.
helps
will help
have helped
help
Question 25
Баллов: 1
________________ children are at home.
Выберите один ответ.
ours
they
their
them
Question 26
Баллов: 1
They ________________ to take part in the competition.
Выберите один ответ.
had
must be
had to be
should
Question 27
Баллов: 1
My sister studies French. She ________________ already read and speak French a little.
Выберите один ответ.
may
can
need
must
Question 28
Баллов: 1
She ________________ in the library the whole evening yesterday.
Выберите один ответ.
works
is working
was working
has worked
Question 29
Баллов: 1
He promised to let us know if anything ________________ .
Выберите один ответ.
will change
changes
would change
changed
Question 30
Баллов: 1
All historical places of London ________________ in the West End.
Выберите один ответ.
are
had been
were
was
Question 31
Баллов: 1
I don't hear ________________ .
Выберите один ответ.
him
he
your
his
Question 32
Баллов: 1
These books are good. Let's give ________________ to the children.
Выберите один ответ.
him
theirs
it
them
Question 33
Баллов: 1
Are you ________________ to smoke?
Выберите один ответ.
to go
going
goes
go
Question 34
Баллов: 1
Did he ________________ the week-end in the country?
Выберите один ответ.
spend
spent
spending
spends
Question 35
Баллов: 1
By the time I came she ________________ a cake.
Выберите один ответ.
cooked
had cooked
will cook
cooks
Question 36
Баллов: 1
He ________________ be in this room.
Выберите один ответ.
is
ought
must
has
Question 37
Баллов: 1
I ________________ you for five years.
Выберите один ответ.
didn't see
haven't seen
doesn't see
don't see
Question 38
Баллов: 1
I know that the news ________________ so amazing that you can’t believe it.
Выберите один ответ.
is
have been
were
are
Question 39
Баллов: 1
We didn't know what time ________________ .
Выберите один ответ.
was it
it is
is it
it was
Question 40
Баллов: 1
By the time we got to the party, most of the guests________________ .
Выберите один ответ.
had left
have left
will leave
left-
Ответов: 1
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5 лет назад
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Вопрос по физике:
Здравствуйте, помогите решить задачу. Определить коэффициент усиления двухкаскадного усилителя напряжения в децибелах и линейных числах, если коэффициенты усиления отдельных каскадов соответственно равны Ku1=20 Ku2=50-
Ответов: 1
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5 лет назад
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