Answer:
Temperature decreases because the number of collision of the molecules decreases as they escape or evaporate. Molecules are in constant motion. Increase in temperature leads to increase in average kinetic energy of the molecules.
Hello User,
Approximately 32 electrons can be fit in the fourth energy level.
Solution:
2+4+6+10+10=32
I think the correct answer would be option C. Adding one proton to an atom of lithium with 3 protons, 4 neutrons and 3 electrons would form a beryllium ion. The new atom have 4 protons and 4 neutrons since Be has a mass number of 9 then it has to form an ion.
Answer:
I = 2 MR²
Explanation:
Given that
Radius of the hollow ring ( hoop ) = R
The mass of the hoop = M
We know that mass moment of inertia of a hoop about its center is given as
Io= M R²
By using theorem ,mass moment of inertia at distance d from center is given as
I= Io + m d²
Here ,M= m ,d =R
Now by putting the values in the above equation we get
I = M R² + M R²
I = 2 MR²
Therefore the mass moment of inertia will be 2 M R².
Answer:
Explanation:
As per the first law of thermodynamics,
U is change in the internal energy of the system and W is work done on the system.
