Homework Statement
see attachement
Homework Equations
dl= PL/AE
The Attempt at a Solution
as you see here my youngs modulus E varies linearly. i doubt that adding up E1 &E2 wld give solution.. any help?
Homework Statement
For (fi)= (b/6) x*y3 +C*xy show that simply supported beam of 2L loaded concentrated load at mid span.,the stress function satisfy loading condition is (fi) .treat concentrated load as shear stress suitably distributed to shoot this function. so that intergtal of limit (h to...
Homework Statement
three harmonic function of frequency p, 2p ,3p were added together. what is the frequency of resultant periodic function?
Homework Equations
X=Asin(wt)
A-amplitude w-frequency
X=X1+X2+X3
The Attempt at a Solution
need a hint ..
Homework Statement
internal diameter of a hollow shaft is two third of its external diameter .if it is melted and new solid shaft is made.what would happen to the shaft resistance of torsion. in percentage?
Homework Equations
as i know T/j=G*angle of twist/length.
torsional...
Homework Statement
An a/c has an approach speed of45 m/s with descent angle of 7.1 deg. if the a/c load factor is 1.2 and constant deceleration at touch down is .25g (g=9.81).its total landing distance approx over a 15m high obstacle is
Homework Equations
R=v/g(n-1)
Sa=(h-hf)/tan( teta)...
well. I have this question. That my rocket is launched from mar in an return mission to earth. To calculate specific impulse of the rocket. Should i consider mar or earth gravity and if why!? Help me with this