What are the answer choices?
        
             
        
        
        
Answer:
charges of the beads is 1.173 × C
 C
Explanation:
given data 
mass = 3.8589 g = 0.003859 kg
spring length = 5 cm = 0.05 m
extend spring x = 1.5747 cm = 0.15747 m
spring's extension = 0.0116 m
to find out 
charges of the beads
solution
we know that force is
force = mass × g 
force = 0.003859 × 9.8 
force = 0.03782 N
so we know  force for mass 
force  = -kx
so k = force / x
put here force and x value
k = -0.03782 / 0.1575
k = -0.24 N/m
and 
force for spring's extension 
force = -kx
force = -0.24 ( 0.0116) = 0.002784 N
so here 
total length L = 0.05 + 0.0116 = 0.0616
so charges of the beads = force × L² / ke
charges of the beads = 0.002784 × (0.0616)² / (9 × )
 ) 
so charges of the beads = 1.173 × C
 C
 
        
             
        
        
        
Answer:
Explanation:
20.05 √Tk = 20.05 √355.8 = 378.196... ≈ 378 m/s
 
        
             
        
        
        
C. Should be the answer it worked for me 
        
                    
             
        
        
        
The answer is divergent boundaries.
I hope this helps you!