An airy stress function is proposed to be: phi = ax^3 + bx^2 y + cxy^2 + dy^3, where sigma_x = partial differential^2 phi /partial differential y^2 = 2cx + 6dy, sigma_y = partial differential^2 phi/partial differential x^2 = 6ax + 2by, tau_xy = -partial differential^2 phi/partial differential x partial differential y = -(2 bx + 2cy) assume a, b, c, d are constants and positive; draw a stress element showing boundary stresses for the following cases: with b=c=d=0 and x-y origin at the left edge of the element and x-y origin at the center of the element with a=d=0 and x-y origin at the center of the element. with the same case as in (2) and c=b=1, determine the boundary forces (that is, normal and shearing forces) on all the edges of a plate measuring 2 m long, 0.5 m wide and 50 mm thick.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

a

explanation:

answer:

try looking it up that is always

explanation:

YE

Explanation:

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