Даю 30 баллов Задача Пiч складаэться з 300 цеглин, мама кожноï 3,5 кг яку кiлькiсть теплоти

Даю 30 баллов
Задача
Пiч складаэться з 300 цеглин, мама кожноï 3,5 кг яку кiлькiсть теплоти вiддасть пiч у наслiдок остигання (охолоджування) вiд 75°С до 25°С.Питома теплоэмнiсть цеглини = 880 Дж/кг°С (Вiдповiдь повинна бути 46,2 мДж)ПЖ ПОМОГИТЕ
- Предмет:
  Физика
- Автор:
  tabithasweeney
- 6 лет назад

Ответы 1

N=300mкирпича=3.5 кг∆t=50°Cc=880 Дж\кг°СQ-?mкирпичей=N*mкирпича=300*3.5=1050кгQ=cm∆t=880*1050*50=46200000Дж=46.2 МДж
- Автор:
  mangokane
- 6 лет назад
- 0
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Are You Happy with the Way You Are Taught English?
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