Answer:

Explanation:
The original equation is:

We notice that:
- we have 1 atom of Fe on the left, and 2 atoms of Fe on the right
- we have 2 atoms of O on the left, and 3 atoms of O on the right
Therefore, the equation is not balanced.
In order to balance it, we can add:
- a coefficient 3 in front of 
- a coefficient 2 in front of 
So we have:

Now the oxygen is balanced, but the iron it not balanced yet, since we have 1 Fe on the left and 4 on the right. Therefore, we should add a coefficient 4 on the Fe on the left:

 
        
                    
             
        
        
        
Quantum entanglement<span> is a physical phenomenon that occurs when pairs or groups of particles are generated or interact in ways such that the </span>quantum<span> state of each particle cannot be described independently — instead, a </span>quantum<span> state must be described for the system as a whole.</span>
        
                    
             
        
        
        
Answer:
Explanation:
Total tension must support the weight of the child and provide the necessary centripetal force.
     2T = m(g + v²/R)
2(414) = 35.0(9.81 + v²/3.02)
   828 = 35.0(9.81 + v²/3.02)
23.65 = 9.81 + v²/3.02
13.847 = v²/3.02
  41.81 = v²
        v = 6.47 m/s
F = 2(414) = 828 N    (ignoring the weight of the chains and seat)