Предмет: Физика, автор: Аноним

Розв'язати задачу. До води масою 350г,взятої за температури 35°С,долили 400г окропу.Яка температура встановиться після теплового балансу?
Дам 100 балів???​

Ответы

Автор ответа: 555ai555
1

Ответ:

Объяснение:

m1 = 350г = 0.35 кг

t1 = 35°С

m2 =  400г = 0,4 кг

t2 = 100 °С

t3 = ?

m1*c*t1 + m2*c*t2 = (m1+m2)*c*t3

m1*t1 + m2*t2 = (m1+m2)*t3

t3 = (m1*t1 + m2*t2) / (m1+m2) = (0.35*35 + 0.4*100) / (0.35+0.4)=

== 70 °С

Предыдущий вопрос
Следующий вопрос
Интересные вопросы
Предмет: Другие предметы, автор: viktoria201216
Дайте відповідь на питання.
1. Скільки кісток налічує скелет дорослої людини і дитини ?
2. Назвіть функції опорно-рухової системи
3. Яка є найбільша і найменша кістка людини ?
1 год назад
Предмет: Английский язык, автор: domon3423
Допоможіть! Це рідінг If your heart starts beating quickly after you've had a can of cola or other fizzy drink, then you should listen carefully to what your body's trying to tell you. Many fizzy drinks contain caffeine, like coffee does, and this is what wakes you up and gives you energy. It can also make you breathe more quickly and even affect your sleep, as well as raise your blood pressure, which could put you at risk of a heart attack or other medical condition.

If you notice effects like these which feel unpleasant. of you think that your heart is often beating Inn fast, it might be time to cut down on the number of fizzy drinks you're having You don't have to stop drinking them altogether, but it's definitely a good idea to drink more water during the day than other kinds of drink, including coffee, tea or hot chocolate, which also contain caffeine And you should avoid having any of these drinks at least six hours before you want to go to sleep However, if you already drink a lot of caffeine, don't stop suddenly, Doing so can cause headaches, stop you being able to concentrate and make you feel more anxious than usual.
Some studies suggest that you should include some caffeine in your diet because it helps to reduce the possibility of heart problems and developing some kinds of cancer. It can also help you keep going while you exercise and reduce muscle pain after you've worked out. And, of course, it is helpful when you want to stay awake and study when you start yawning! (изменено)
[17:33]
But how much caffeine in healthy? Doctors say that teenagers shouldn't have more than 100 mg a day, which is about one cup of coffee, or about three cans of regular cola. That isn't to say that drinking three cans of cola is good for you, it contains a lot of sugar and can cause the negative effects mentioned earlier. You should also be very careful with energy drinks. Some large cans can contain over 150 mg of caffeine, which is more than the recommended daily amount for a teenager.
Remember if your heart often beats fast when you're resting and you don't have fizzy drinks or other drinks containing caffeine, you could have a medical problem. So, if you're even a little bit worried, you should go and ask the doctor to check you over.

Питання: 1 Soft drinks such as cola and certain kinds of hot drink have something in common.
2 Fizzy drinks have both positive and negative effects on the body..
3 The article says you should drink water immediately to reduce the effects of too much caffeine
4 When people try to stop drinking caffeine, they might feel ill.
5 Research shows that some caffeine can be healthy for the body.
6 Young people shouldn't drink more than one cup of coffee each day.
7 Energy drinks contain less caffeine than cola 8. The article says it's a good idea to see a doctor about drinking too much caffeine.
1 год назад
Предмет: Английский язык, автор: aleksandrsasskij
Choose the sentence in the Passive Voice.
The new project has been finished already
The town council has just opened our local museum
Their house looks very neat after they have painted it
Your homework must finished by Monday
1 год назад
Предмет: Литература, автор: JeykBoss
Помогите пожалуйста вопросв и задание
Вопросы и задания
1. Какие картины мы видим? Опишите
2. Какие литературные приёмы использует автор?
4. Какие слава помогают выбрать правельную интонацию​
7 лет назад
Предмет: Биология, автор: omardulaev98
Обозначь растения, которые относят к семейству Лилейные и запиши обозначающие их буквы (в алфавитном порядке, без пробелов).

Лилейные —

Д. тюльпан,
П. бамбук,
Ж. лилия,
У. пастушья сумка,
А. осот.
7 лет назад