Explanation:
put them in where the letters start with
Answer: The answer is 2.3 x 10 4's.
I’m not good at this but I’m guessing it’ll be the first one!
Answer:
Final temperature = 
Explanation:
Given that,
Heat added, Q = 250 J
Mass, m = 30 g
Initial temperature, T₁ = 22°C
The Specific heat of Cu= 0.387 J/g °C
We know that, heat added due to the change in temperature is given by :

Put all the values,

So, the final temperature is equal to
.
This looks correct to me! <3 have a good day