The ballon will be attracted to the rod.
The most weight was gained between 0 - 1 years for both boys and girls.
<h3>What is weight?</h3>
- Weight is a vector quantity that varies from place to place to due to effect of gravity.
Average weight of the boys in pounds;
age -------------------- average weight
0 -------------------------50
1 ------------------------- 45
2 ------------------------ 40
3 ------------------------- 35
4 -------------------------- 30
5 -------------------------- 25
Average weight of the girls in pounds;
0 --------------------------------- 20
1 ----------------------------------- 15
2 ------------------------------------ 10
3 --------------------------------------5
4 -------------------------------------- 0
5 --------------------------------------- 1
The most weight was gained between 0 - 1 years for both boys and girls.
Learn more about average weight here: brainly.com/question/24889549
Answer : The final temperature of the copper is, 
Solution :
Formula used :

where,
Q = heat gained = 299 cal
m = mass of copper = 52 g
c = specific heat of copper =
= final temperature = ?
= initial temperature = 
Now put all the given values in the above formula, we get the final temperature of copper.


Therefore, the final temperature of the copper is, 
Answer:
Please find equations in the attachment file.
Explanation:
The carbon dioxide in the headspace above the liquid is at higher pressure than atmospheric pressure outside the can.
The gas is at a lower volume initially but suddenly has a larger volume available when the can is opened.
The change in pressure as the gas rapidly moves to become dispersed through its new volume causes the "whoosh" sound.
The gas law that applies is Boyle's law.
This above is the exact answer for edgunity