Lead shot weighing 810. g at 100°C is dropped into a calorimeter cup containing 350. g of water. The cup is 280. g of copper, and both the cup and the water are initially at 15°C. What is the final temperature?

The specific heat for water is 4.18J/g°C
The specific heat for copper is 0.390J/g°C
The specific heat for lead is 0.130J/g°C​

because growing process had stoped after 4-5 year

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