Questions Asked

John_henderson:
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A group of bored piles, 0.5 m diameter and 15 m long is to be installed on a site underlain by the following strata:
…
 updated 8 months ago
 3 replies
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John_henderson:
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Hi guys i need help on these two questions please help!
The variation of fracture toughness with specimen thickness. Explain the reasons …
 updated one year ago
 1 reply
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John_henderson:
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Problem :
A storage tank comprising an open circular cylinder (radius R, height H) seated on ' a' conical hopper (with slope 3 parts vertic…
 updated one year ago
 146 replies
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John_henderson:
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Hi ,
i need help with Lagrange multipliers the question is as follows can you please go though it step by step any help is much appreciat…
 updated one year ago
 87 replies
 1 Medal

John_henderson:
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Hi guys i really need help on this design optimisation question any help is much appreciated :
Two generators are connected to provide …
 updated one year ago
 6 replies
 1 Medal

John_henderson:
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Hi
I have been stuck on this moments question for a while so please do help, how do i get the shear forces at the points A B and C for th…
 updated one year ago
 17 replies
 2 Medals

John_henderson:
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There is a natural river channel with complex cross sections. The bed roughness of side bank is 1 n = 0.04 and main channel is 2 n = 0.03. C…
 updated one year ago
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John_henderson:
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How to determine bn of a fourier series and find the 6 non zero terms where :
bn = 1/2 * integral t*sin(npit/2) dt
…
 updated one year ago
 26 replies
 1 Medal

John_henderson:
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A function is defined by
Ft=( 0, when  pi <t< pi/2 )
…
 updated one year ago
 34 replies
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John_henderson:
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how do i find the period of these funtions
f(t) = t 2<t<2
f(t) = t^2 pi<t<pi
…
 updated one year ago
 4 replies
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John_henderson:
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A periodic function is defined by f(t)=t over
2<t<2.
…
 updated one year ago
 45 replies
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John_henderson:
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Integrate limits 3 to 0 for 4*root(4y)
 updated one year ago
 5 replies
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John_henderson:
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A material has a shear modulus of 7.65 GN/M^2. When a solid body of this material is subject to a hydrostatic pressure of 1GN/M^2, its volum…
 updated one year ago
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John_henderson:
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Hi,
I'm struggling to answer this fracture mechanics question. I have wrote a quick summary what i have calculated so far. Please help.…
 updated one year ago
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John_henderson:
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find the laplace trasfrom of
1. ft(t) = h(t1)cos(t1)
…
 updated one year ago
 16 replies
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John_henderson:
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1. Given that X=x(t) and y=Y(t) are two functions of time, t and they are related by the following equations.
dx/dt  x +y=e^t
…
 updated one year ago
 15 replies
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John_henderson:
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A periodic function F(t) is defined by f(t)=t^2, over pi<t<pi
A1. State the period of f(t).
…
 updated one year ago
 28 replies
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John_henderson:
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V= ∫ ∫ 4dydx + ∫ ∫ 4dydx
For the first set of integrals the outer limits are from 1 to 0. The inner limits are from X^2 to 0.
…
 updated one year ago
 69 replies
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John_henderson:
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Use laplace transform to solve the differential equation:
d^2y/dt^24dy/dt+4y=7e^2t*sin3t24e^2t*co3t
…
 updated one year ago
 69 replies
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John_henderson:
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Express the following in terms of Heavyside Function=> H(ta) and find its laplace transform Where
F(t) = t 0<t<1
0 1<t< 2…
 updated one year ago
 21 replies
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John_henderson:
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Using laplace trasform solve :
dx/dt+3x=0
 updated one year ago
 126 replies
 2 Medals

John_henderson:
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Inverse laplace trasform of
s^2+2s+3/(s^2+2s+2) (s^2+2s+5)
 updated one year ago
 10 replies
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John_henderson:
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Verify the following results by direct integration
laplace of ( e^t*sin2t)= 2/s^2+2s+5
 updated one year ago
 16 replies
 2 Medals

John_henderson:
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∫∫xydxdy
The region bounded by the positive y axis the line y = √3 x and the circle x2 + y2 = 4 .
 updated one year ago
 20 replies
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John_henderson:
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Q=> Fluid mechanics question.
Water flows in a horizontal rectangular channel. The water depth is 0.3 m and the flow speed is 0.5 m/s un…
 updated one year ago
 1 reply
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John_henderson:
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Q=> Fluid mechanics question.
Water flows in a horizontal rectangular channel. The water depth is 0.3 m and the flow speed is 0.5 m/s un…
 updated one year ago
 23 replies
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John_henderson:
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Double integrals change of order=>
∫∫ye^x dxdy + ∫∫ye^x dxdy
…
 updated one year ago
 48 replies
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John_henderson:
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Q=> Fluid mechanics question.
Water flows in a horizontal rectangular channel. The water depth is 0.3 m and the flow speed is 0.5 m/s un…
 updated one year ago
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John_henderson:
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Fluid mechanics question =>
A water tank is connected to two pipes at the side near bottom. The distance between the water surface and th…
 updated one year ago
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John_henderson:
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∫∫ (x+y)^2/(X^2+Y^2) dxdy
The region bounded by the positive x and y axes and the line y = 1x
 updated one year ago
 35 replies
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