Answer:

Explanation:
As per the formula of thermal expansion we know that

so here we will have



so here change in the length of the rod is given as




 
        
             
        
        
        
A. A car comes equipped with side airbags. I don't know how I'm supposed to show work but that's the answer
 
        
                    
             
        
        
        
Answer:  B. the history of life in the geologic past
Explanation:
B. the history of life in the geologic past because fossils help us by telling what type of animals were alive back then ex ) a dinosaur fossil shows us what type of dinosaur it was 
PLEASE MARK BRANILIEST
 
        
                    
             
        
        
        
Answer:
The value is  
Explanation:
From the question we are told that 
    The  Coulomb constant is  
    The  charge on the electron/proton  is  
     The  mass of proton 
     The  mass of  electron is  
Generally for the electron to be held up by the force gravity 
    Then    
        Electric force on the electron  =  The  gravitational Force 
 i.e  
             
          
          
          
 
        
             
        
        
        
That's a molecule of Butane.
It's made out of 4 Carbon atoms and 10 Hydrogen atoms.