Answer:
Don't you worry, 'cause everything's gonna be alright, ai-a'ight
Be alright, ai-a'ight
Explanation:
 
        
                    
             
        
        
        
The higher the thermal energy the faster the conduction convection and radiation take place as the particles have more kinetic (movement) energy
        
             
        
        
        
You can solve this using the equation k=mv^2. k is the kinetic energy, m is the mass, and is the velocity. k=30(3.4)^2, so the answer is 346.8 J. 
        
             
        
        
        
Answer:
1917723.40119 m/s
Explanation:
m = Mass of deuteron = 
k = Boltzmann constant = 
T = Temperature = 
RMS velocity is given by

The RMS velocity of the deutrons is 1917723.40119 m/s
 
        
             
        
        
        
Impulse = Ft=mΔv => Δv = Ft/m = 4.28/0.18 = 23.78 m/s
But,
Δv = v1-v2, where v1 = initial velocity = 16 m/s, v2 = final velocity
Therefore,
v1 - v2 = 23.78 => v2 = v1 - 23.78 => v2 = 16 - 23.78 = -7.78 m/s
The velocity of ball after the force is 7.78 m/s in the direction of the force.