I am the medium one that in the family
        
             
        
        
        
Answer:
leverage 
Explanation:
Leverage ...this allows you to use less force through a longer distance
 
        
             
        
        
        
A "folk" remedy is something you choose to eat, take, or do, 
in order to correct some health issue, because your friend, 
your grandmother, your religion, your shaman, your astrologer,
or your medicine man says that it's the right thing to do.  
It may or may not be effective, and it may or may not even be 
safe.  What distinguishes it from mainstream medicine is that 
its practices are based on hearsay, and have not been subjected 
to scientific methods of investigation and evaluation.
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Answer:
The Curiosity rover found that ancient Mars had the right chemistry to support living microbes. Curiosity found sulfur, nitrogen, oxygen, phosphorus and carbon-- key ingredients necessary for life--in the powder sample drilled from the "Sheepbed" mudstone in Yellowknife Bay.
Explanation:
Hope it helped
 
        
                    
             
        
        
        
The frequency of the wave is 6800 Hz
<u>Explanation:</u>
Given:
Wave number, n = 20
Speed of light, v = 340 m/s
Frequency, f = ?
we know:
wave number = 

Therefore, the frequency of the wave is 6800 Hz