The sign is subjected to a homogeneous pressure of 80 n/m2 (in the negative z–direction of coordinate system provided) and has a weight of 600 n. determine the principal stresses and the absolute maximum shear stress at point a located at the base of the 6 m– vertical pole that supports the sign. the outer radius of the solid pole is 6 cm.

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above

Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?