Answer : The final temperature of the mixture is
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of iron =
= specific heat of water =
= mass of iron = 39.9 g
= mass of water =
= final temperature of mixture = ?
= initial temperature of iron =
= initial temperature of water =
Now put all the given values in the above formula, we get
Therefore, the final temperature of the mixture is
Answer:
-3 °C
Explanation:
adding salt lowers the freezing point of the water
The frequency of the waves increases as you go from left to right on the El. spectrum / The length of the waves decreases as you go from left to the right on the El. spectrum - both of them are correct use the one you prefer more
P.S. most textbooks should show that radiowaves are on the left side and UV or gamma rays on the right - if it's opposite in your one then just replace the second word with their appropriate antonyms.