Answer:
I think A
Explanation:
because it dosn't have enough tools
 
        
             
        
        
        
Answer: meter per second
Explanation: meter per second
Speed has the dimensions of distance divided by time. The SI unit of speed is the meter per second, but the most common unit of speed in everyday usage is the kilometer per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used.
 
        
             
        
        
        
Answer:
A) a neutron pushing on another neutron.
Explanation:
Neutrons have no charge, therefore, there is no electric force among them. Protons and electrons on the other hand do have electric charge (electrons negative charge and protons positive charge) that generate electric forces between them that can be repelling forces (if the charges are of the same sign), or attractive forces (if the charges are of opposite signs).
 
        
             
        
        
        
1) 

 <Solve using the formula which is:
Mass=Density×Volume

2) 
 
 3) 

 (Length  × Width × Height)


 (Answer=7.5)