Answer:
c i think soory if wrong
Step-by-step explanation:
Answer:
4,7025 (kJ).
Step-by-step explanation:
1) according to the condition: m=25 gr.; t₂=90; t₁=45; c=4.18 J/(g°C);
2) the formula of required heat is
Q=c*m*(t₂- t₁);
3) according to the formula of heat:
Q=4.18*25*45=4702.5 (J).
Answer:
? = 70°
Step-by-step explanation:
180 - 120 = 60° (120° and 60° are supplementary angles)
180 - 50 - 60 = 70° (all triangle interior angles total 180°)
3x - y = - 11 you are welcome
