Помогите!!!!!! A6 срочно!!!!!!!!!!!!!!!°

Question

Помогите!!!!!! A6 срочно!!!!!!!!!!!!!!!°

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Answer 1

Q=cm(t²-t¹)
m=Q/c(t-t)
m=8400/4200(30-10)
m=10кг

Q=1700*10(20-0)=340 000дж