Предмет: Физика, автор: ndjdkdks966

яка кількість теплоти виділиться під час охолодження 4 кг заліза від 500° до 20° С

Ответы

Автор ответа: 1Manka1
1

Ответ:

883200Дж

Объяснение:

Дано:

с=460Дж/кг°С

m=4кг

∆t=500-20=480°C

========

Q-?

Q=cm∆t=460*4*480=883200Дж

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