Answer:
speed and acceleration
Explanation:
speed is a scalar quantity
acceleration is a vector quantity
 
        
             
        
        
        
Answer:
20 metres
Explanation:
<em>Speed</em><em> </em><em>=</em><em> </em><em>distance</em><em> </em><em>÷</em><em> </em><em>time</em>
<em> </em>
<em> </em>
</em>
If we substitute the values:

<em> </em>
</em>
 
        
                    
             
        
        
        
Kinetic, thermal, and the temperature of the substance all decrease when the particles slow down.
        
                    
             
        
        
        
Answer:the answer should be dark energy
Explanation:
 
        
                    
             
        
        
        
Friction but i may be wrong