Answer:
factor that bug maximum KE change is 0.52284
Explanation:
given data 
vertical distance = 6.5 cm
ripples decrease to =  4.7 cm
solution
We apply here formula for the KE of particle that executes the simple harmonic motion that is express as
KE = (0.5) × m × A² × ω²     .................1
and kinetic energy is  directly proportional to square of the amplitude.
so 
 .............2
      .............2

 = 0.52284
 = 0.52284 
so factor that bug maximum KE change is 0.52284
 
        
             
        
        
        
Answer:
 1.736m/s²
Explanation:
According to Newton's second law;

 where;
 where;
Fm is the moving force = 70.0N
Ff is the frictional force acting on the body

 is the coefficient of friction
 is the coefficient of friction
m is the mass of the object
g is the acceleration due to gravity
a is the acceleration/deceleration
The equation becomes;

Substitute the given parameters

Hence the deceleration rate of the wagon as it is caught is 1.736m/s²
 
        
             
        
        
        
Answer is 
9.773m/s^2
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Given,
h=8848m
The value of sea level is 9.08m/s^2. So, Let g′ be the acceleration due to the gravity on Mount Everest.
g′=g(1 − 2h/h)
=9.8(1 - 6400000/17696)
=9.8(1 − 0.00276)
9.8×0.99724
=9.773m/s^2
 
Thus, the acceleration due to gravity on the top of Mount Everest is =9.773m/s^2
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hope this helps :)
 
 
        
             
        
        
        
True . this is called a complex substance