Answer:
38 cm from q1(right) 
Explanation:
Given, q1 = 3q2 , r = 60cm = 0.6 m
Let that point be situated at a distance of 'x' m from q1.
Electric field must be same from both sides to be in equilibrium(where EF is 0). 
=> k q1/x² = k q2/(0.6 - x)²
=> q1(0.6 - x)² = q2(x)² 
=> 3q2(0.6 - x)² = q2(x)²
=> 3(0.6 - x)² = x²
=> √3(0.6 - x) = ± x 
=> 0.6√3 = x(1 + √3) 
=> 1.03/2.73 = x 
≈ 0.38 m = 38 cm = x
 
        
             
        
        
        
Answer:
quark
Explanation:
neutrón= 1.675 x 10-27 kg
proton=1,673 x 10-27 kg
electron=9,11 x 10-31 kg
quark=7,13 - 14,26 · 10−30 kg
 
        
             
        
        
        
The answer is the 4th option because they don't use oxygen, that's what they produce
        
                    
             
        
        
        
It just completely stops kinetic energy is movement so technically it would stop.