Answer:
 

Explanation:
According to the law of conservation of linear momentum, the total momentum of both pucks won't be changed regardless of their interaction if no external forces are acting on the system.
Being  and
 and  the masses of pucks a and b respectively, the initial momentum of the system is
 the masses of pucks a and b respectively, the initial momentum of the system is

Since b is initially at rest

After the collision and being  and
 and  the respective velocities, the total momentum is
 the respective velocities, the total momentum is

Both momentums are equal, thus
 
Solving for 


 
The initial kinetic energy can be found as (provided puck b is at rest)


The final kinetic energy is


The change of kinetic energy is

 
        
             
        
        
        
Answer:
D. Strong nuclear forces hold the nucleus of an atom together. Weak nuclear forces are involved when certain types of atoms break down.
Explanation:
 
        
             
        
        
        
An intense solar storm COULD disrupt communications and damage the power grid. <em> (A)</em>
 
        
             
        
        
        
An equation relating the length that you measure l to the ship's proper length l0  is   
l =l0/y. This is further explained below.
<h3>What is an equation relating the length that you measure l to the ship's proper length l0?</h3>
Generally, Any object's length in a moving frame will look shortened or contracted when seen in that direction. The Lorentz transformation may be used to determine the amount of contraction.
In conclusion, To use the Lorentz Lorentz transformation, the length Lo-x2 - may be determined if it is measured in the moving reference frame. Hence the Resultant l = l0/y.
Read more about Lorentz transformation 
brainly.com/question/16284701
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Answer:
If you have a parental figure or guardian ask them for assistance. Contact a lawyer if you are willing to take action against your attacker.