Answer:
a
because the mechanical wave is when it goes over and over again
 
        
                    
             
        
        
        
In a constant acceleration of 3m per second, after 10 seconds,
3 x 10 = 30
B. 30m/s is your answer
hope this helps :D
        
                    
             
        
        
        
Answer:
How did life begin on earth?
Explanation:
this is an example of a question that cannot be solved or why do we sleep too cannot be solved
 
        
                    
             
        
        
        
Answer:
It should be option B polarization 
 
        
                    
             
        
        
        
Answer:
Power your home with renewable energy. 
Weatherize, weatherize, weatherize. 
Invest in energy-efficient appliances. 
Reduce water waste. 
Actually eat the food you buy—and make less of it meat.
Explanation: