Answer:
-1.09m/sec^2
Explanation:
Acceleration= (Vf-Vi)/Time
=12-54.8
= -42.8
= -42.8/39 
=-1.09
-ve sign is due to recoil of train
as it suddenly hits brakes.
 
        
                    
             
        
        
        
D. The graduated cylinder is used to find the volume, and triple beam balance is used to find the mass.
        
                    
             
        
        
        
Answer:
mercury and alcohol 
ii) used to test temperatures
 
        
                    
             
        
        
        
Force, newtons 3rd law of motion stated for every action there is an equal and opposite reaction
        
             
        
        
        
The relationship between math and science is very complicated, yet at the same time very simple. In fact all scientific equations are expressed into some form of mathematical equations. Science is a body of knowledge about the Universe. Mathematics is a language that can describe relationships and change in relationships in a rational way. Science generally uses mathematics as a tool to describe science and vice versa.