Solution :
Given : 
The number of blows is given as :
0 - 6 inch = 4 blows
6 - 12 inch = 6 blows 
12 - 18 inch = 6 blows
The vertical effective stress 
                                               
                                              
Now,

 corrected N - value of overburden
 effective stress at level of test
0 - 6 inch, 
                       = 9.86
6 - 12 inch, 
                         = 14.8
12 - 18 inch, 
                          = 14.8

        = 13.14
        = 13
 
        
             
        
        
        
Answer:
launch- The first stage is ignited at launch and burns through the powered ascent until its propellants are exhausted. The first stage engine is then extinguished, the second stage separates from the first stage, and the second stage engine is ignited. The payload is carried atop the second stage into orbit
powered ascent-The first stage is ignited at launch and burns through the powered ascent until its propellants are exhausted. The first stage engine is then extinguished, the second stage separates from the first stage, and the second stage engine is ignited. The payload is carried atop the second stage into orbit
coasting flight-
When the rocket runs out of fuel, it enters a coasting flight. The vehicle slows down under the action of the weight and drag since there is no longer any thrust present. The rocket eventually reaches some maximum altitude which you can measure using some simple length and angle measurements and trigonometry.
ejection charge-At the end of the delay charge, an ejection charge is ignited which pressurizes the body tube, blows the nose cap off, and deploys the parachute. The rocket then begins a slow descent under parachute to a recovery. The forces at work here are the weight of the vehicle and the drag of the parachute.
slow decent- slow downs (i guess)
recovery-A recovery period is typically characterized by abnormally high levels of growth in real gross domestic product, employment, corporate profits, and other indicators. This is a turning point from contraction to expansion and often results in an increase in consumer confidence
Explanation:
 
        
             
        
        
        
Answer:
hand tracing
Explanation:
as a programmer when we pretend  computer in the  debugging process by the step of each statement in recording     
then there value of variable is hand tracing because as The hand tracking feature is the use of hands as an input method       
so while recording value of each variable each step is hand tracing
 
        
             
        
        
        
Explanation:
Instantaneous center:
    It is the center about a body moves in planer motion.The velocity of Instantaneous center is zero and Instantaneous center can be lie out side or inside the body.About this center every particle of a body rotates.
From the diagram 
Where these two lines will cut then it will the I-Center.Point A and B is moving perpendicular to the point I.
If we take three link link1,link2 and link3 then I center of these three link will be in one straight line It means that they will be co-linear.
