Good are free zones bad is car pollution ext.
        
                    
             
        
        
        
To start the control would be import to see how drivers would act with full focus on the road. The subjects should (in order for the only difference to be the phone) is to use the same vehicle same road same weather condition, just obviously one has the phone the other does not. I hope this helps
        
                    
             
        
        
        
Answer:
in the direction of the applied force
Explanation:
 
        
             
        
        
        
Answer:
a

b

c

Explanation:
From the question we are told that 
    The frequency is  
    The  length of the vibrating string is  
    The  mass is  
Generally the wavelength is mathematically represented as 
            
=>        
=>         
Generally the wave speed is  
           
=>       
=>       
Generally the tension on the wire is mathematically represented as 
         
=>      
=>      
 
        
             
        
        
        
4. a poor insulator
If rest other things are kept constant or unchanged then a good conductor can be termed as a poor insulator.