Answer:
<em><u>To be neutral</u></em>
Explanation:
Neutrons are electrically neutral but contribute to the mass of a nucleus to nearly the same extent as the protons. Neutrons can explain the phenomenon of isotopes (same atomic number with different atomic mass). The main role of neutrons is to reduce electrostatic repulsion inside the nucleus.
Predestination, in theology, is the doctrine that all events have been willed by God, usually with reference to the eventual fate of the individual soul. Explanations of predestination often seek to address the "paradox of free will", whereby God's omniscience seems incompatible with human free will.
Answer:
Put water at room temperature into a vacuum chamber and begin removing the air. Eventually, the boiling temperature will fall below the water temperature and boiling will begin without heating. Or if you want to be easy but messy, add dry ice to a bowl of water and watch how the water starts to boil.
While we think and feel that we are touching, we actually are not(: It’s all an illusion made by the brain
Answer
According the conservation of energy
I for ball = 
![v_i^2+[1+\dfrac{2}{3}]=2gh](https://tex.z-dn.net/?f=v_i%5E2%2B%5B1%2B%5Cdfrac%7B2%7D%7B3%7D%5D%3D2gh)
a) 
b) 
