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Creep (60)

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All questions asked  below are from hc verma part 1 page 273 {exercise}
 
1. q-1 and q-7   .why atm pressure is not used   .    p=p` +dgh     
2.q-2 part b .plz solve it
3.q-8 part c and part e
we  know torque=force *radius what is radius in these questions .
4.q-18   plz give concepts involved and  solve it.
                                                          
    
abc xyz (425)

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q2=>part 8
it will be Patm + d(hg)*g*h = 1.01*10^5 + 13600*10*0.08
(take total height of mercury, ie 8cm)

solve to get 111880 Newtons.


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Nikhil Gupta (315)

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3) q.8--(c)
 
inside the liquid force act in every direction due to adhesion
d=F*r
d=20000(1-x)x
 
  hey man its not radius its perpendicular distance from acting force 
 
           

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edison (8935)

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Just single query per post.
Do mention entire problem rather than quoting references

A paradox is an argument that starts with apparently acceptable assumptions and leads by apparently valid deductions to an apparent contradiction. Since logic admits no contradictions, either the apparently acceptable assumptions are not acceptable, or the apparently valid
deductions are not valid, or the apparent contradiction is not a contradiction. A paradox moves us to reexamine the argument until we find out what is wrong.
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