Answer is A)mixtures of minerals
        
             
        
        
        
The tangent looks good. 
The curve is a bit crooked, at the 0.9 and 1.
But overall, cool graph.
 
        
             
        
        
        
Answer:
D
Explanation:i think but dont get mad if im wrong
 
        
             
        
        
        
Answer:
Explanation:
Let Torque due to friction be
F  
Net torque 
= 46 - F
Angular impulse = change in angular momentum 
=(  46 - F ) x 17  = I X 580 
When external torque is removed , only friction creates torque reducing its speed to zero in 120 s so 
Angular impulse = change in angular momentum 
F  x 120 = I X 580 
(  46 - F ) x 17 = F  x 120
137 F = 46 x 17 
F = 5.7 Nm 
b )
Putting this value in first equation 
5.7 x 120 = I x 580 
I = 1.18 kg m²