Answer:
The power for circular shaft is 7.315 hp and tubular shaft is 6.667 hp
Explanation:
<u>Polar moment of Inertia</u>

       = 0.14374 in 4
<u>Maximum sustainable torque on the solid circular shaft</u>

          =
          = 3658.836 lb.in
          =  lb.ft
 lb.ft
          = 304.9 lb.ft
<u>Maximum sustainable torque on the tubular shaft</u>

           = 
           = 3334.8 lb.in 
           =  lb.ft
 lb.ft
           = 277.9 lb.ft
<u>Maximum sustainable power in the solid circular shaft</u>

           = 
           = 4023.061 lb. ft/s
           =  hp
 hp
           = 7.315 hp
<u>Maximum sustainable power in the tubular shaft</u>

             = 
             = 3666.804 lb.ft /s 
             =  hp
hp
             = 6.667 hp
 
        
             
        
        
        
Protons and neutrons are packed together in a very small region called nucleus. Protons are positively charged and we know that like charges repel. Then how is it that protons are not repelling each other and flying away from nucleus? 
You may think that gravitational force is holding all the protons together but it is not so. Gravitational force is many times weaker than repulsive force.
It is actually strong force which holds proton together. At this short distance, strong force comes into play and is several times stronger than the repulsive force.
 
        
             
        
        
        
Answer:
The ratio is 9.95
Solution:
As per the question:
Amplitude, 
Wavelength, 
Now,
To calculate the ratio of the maximum particle speed to the speed of the wave:
For the maximum speed of the particle:

where
 = angular speed of the particle
 = angular speed of the particle
Thus

Now, 
The wave speed is given by:

Now,
The ratio is given by:

