n = Qполезное/Qзатраченное
Qп= С*mв*(t2-t1)
Qз=q*mc
mс=4200*1*(50-14)*100/75*27000000≈0,007кг≈7г
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n = Qполезное/Qзатраченное
Qп= С*mв*(t2-t1)
Qз=q*mc
mс=4200*1*(50-14)*100/75*27000000≈0,007кг≈7г