It is a chemical change because the baking soda and vinegar are reacting to form a new product.
        
             
        
        
        
Hornblede the mineral which is made of more than one element is hornblende
        
                    
             
        
        
        
Answer:
Gravity 
Explanation:
Gravity is a force that pulls the surface of the earth and keeps the planets in orbits around the sun.
 
        
                    
             
        
        
        
Answer:
The diameter of the bull-wheel is 3.82 
Explanation:
Given that,
Velocity = 2.0 m/s
Angular velocity = 10 rev/m


We need to calculate the diameter of bull-wheel
Using formula of angular velocity


Put the value into the formula


The diameter of the bull-wheel 



Hence, The diameter of the bull-wheel is 3.82 m.
 
        
             
        
        
        
Element. element cannot be simplerfide