Answer:
28.295244 MeV
Explanation:
 = Mass of proton = 1.007276 u
 = Mass of proton = 1.007276 u
 = Mass of neutron = 1.008665 u
 = Mass of neutron = 1.008665 u
 = Mass of electron = 0.000549 u
 = Mass of electron = 0.000549 u
Mass of reactant is 4.002604 u
Mass of the products is

(2 because there are 2 of each)
The difference in mass is

So, the work done in MeV would be

The work done required to completely disassemble all the helium is 28.295244 MeV
 
        
             
        
        
        
 17.7m/s
Explanation:
Given parameters: 
Height of branch = 16m 
Unknown: 
Velocity before falling = ? 
Solution: 
We are going to use the appropriate motion equation to solve this problem. 
The bird is falling in line with the action of gravity. 
Initial velocity is 0 for the bird. 
Let the velocity during flight = V; 
  Then; 
              V² = U²  + 2gH
since U = 0
       V² = 2gH 
     V is the unknown velocity
      H is the height of fall
      g is the acceleration due to gravity
     V = √2gH = √ 2x9.8 x 16 =  17.7m/s
learn more: 
Velocity brainly.com/question/4460262
#learnwithBrainly
 
        
             
        
        
        
Had to look for the options and here is my answer.
Based on the listed choices, the one that is considered as a disadvantage of radio telescopes over optical telescopes is that "t<span>hey have greater resolution for similar size collectors." Hope this answers your question.</span>
        
             
        
        
        
Answer:
Because of immense gravity
Explanation:
The formation of the Solar system was a very dynamic process. A lot of matter was thrown towards the outer solar system which further formed the Gas giants: Jupiter, Saturn, Uranus, and Neptune. The size of these outer planets is huge so is their gravity.
Because of their huge gravity a lot of matter which was scattered in the outer solar system got attracted towards them. This matter is what make the rings of the outer planets. Also, because of immense gravity they captured larger bodies thus making them their Moons.