Предмет: Физика, автор: danieljenishbekov9

Какой массу медного тела можно нагреть на 250° за счёте воды выделяющей при конденсации 190 г водяного пара?

Ответы

Автор ответа: 1Manka1

0

Ответ:

4,37кг

Объяснение:

Дано:

с=400Дж/кг°С

∆t=250°C

m2=190г=0,19кг

r=2,3*10⁶Дж/кг

=======

m1-?

Q1=Q2

cm1∆t=rm2=>

m1=(rm2)/(c∆t)=

=(2,3*10⁶*0,19)/(400*250)=4,37кг

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: dtancura261

напиши сочинение о поэт Александр Пушкин

11 месяцев назад

Предмет: Английский язык, автор: ivanovdanil20121991

E. Complete the dialogues with the correct form of the adjectives in brackets.

1.

A: So, what do you think? The blue or the yellow bag?

B: Well, the yellow bag is (1), (nice) than the blue bag, but it's (2) (small). But look at that price!

Maybe the blue bag is (3) (good). It isn't as

(4) (expensive) as the yellow bag.

A: Look, maybe we need to find something

(5)

(cheap) than this. It's probably the

(6) T (expensive) thing in this shop!

2.

A: So, are you coming to the beach with us?

B: I don't know. It's a bit cold today.

A: What? It's (7) and (8) (hot) than it was yesterday (sunny)

B: Really? And where are you going?

A: To Blue Bay Beach

B: But that's the (9) here! It's always (10) other beaches (popular) beach around (crowded) than the

A: The other beaches may not be as (1) (crowded) or as (12) Beach but Blue Bay is the (13) (noisy) as Blue Bay

(nice) of all!
40 балов робити в ключах

11 месяцев назад

Предмет: Английский язык, автор: dfedeneva75

Moon also affects the way we measure
time. The first day of the week,
Monday, is named after the Moon.
There are twelve lunar months in a
year, and the word 'month' comes from
'moon'.
The Moon is the brightest object in the
night sky, and its appearance changes
during the month. These changes are
called 'phases of the moon'. The
phases begin with the new moon,
when the moon is not visible from the
Earth. Then the moon appears to get
bigger each night, until it is a full moon.
After that, it gets smaller again until it is
another new moon.
1. What is the Moon's size compared
to the Earth?
2. Why does the Moon have a
different climate from the Earth?
3. How often does the Moon orbit
the Earth?
4. What causes the ocean tides on
Earth?
5. What are the phases of the moon
and how do they change during the
month?

11 месяцев назад

Предмет: Английский язык, автор: guldenbakhytzhan

Pocahontas came from a(n) ____
tribe.
She could learn ____
language.
She was in prison for a ___
помогите пожалуйста )

6 лет назад

Предмет: Английский язык, автор: battalov637

1.Tell about an unusual hobby you know.

6 лет назад