Question

Am nevoie de ajutor la acest exercitiu! Va rog eu mult sa ma ajutati!
t2=80(grade celsius)
t1=20 (grade celsius)
tf=35(grade celsius)
mf=20kg.
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m1=?
m2=?
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Answer 1

m1c(tf-t1)=m2c(t2-tf)<=>m1(35-20)=m2(80-35)<=>15m1=45m2<=>m1=3m2

m1+m2=mf

3m2+m2=20<=>4m2=20=>m2=5 kg

m1=3m2=3•5=15 kg