An aluminum cantilever beam of length L 5 0.65 m carries a distributed load, which includes its own weight, of intensity q/2 at A and q at B. The beam cross section has a width of 50 mm and a height of 170 mm. Allowable bending stress is 95 MPa and allowable shear stress is 12 MPa. The permissible value of load inten- sity q is approximately:
(A) 110 kN/m
(B) 122 kN/m
(C) 130 kN/m
(D) 139 kN/m
(C) 130 kN/m
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The speed of sound in air is a function of which one of the following?
a. wavelength c. temperature b. frequency d. amplitude
The continuing rise in the carbon dioxide in our atmosphere should cause our surface temperatures to rise
Indicate whether the statement is true or false
Simple harmonic motion
A. occurs when there are no forces on the system B. requires a constant force C. requires a force which is not constant, but varies directly with position D. requires a force which is not constant, but varies inversely with position