Question

Q=9000 джc=450 дж/кг*ktq=O*Ctz +100°C​

Answer 1

m=Q/(c*∆t)=9000/(450*100)= 0.2 кг

Answer 2

It looks like you have provided some equations, but they seem to be incomplete or not well-formed. There are some variables mentioned without clear definitions or context. Additionally, it's not clear what you want to achieve or what information you are looking for.

If you can provide more context and clarify the equations or questions you have, I'll be happy to help you further and provide relevant information or explanations. Please provide more details so that I can assist you effectively.