A steel hanger with solid cross section has horizontal force P 5 5.5 kN applied at free end D. Dimension variable b 5 175 mm and allowable normal stress is 150 MPa. Neglect self-weight of the hanger. The required diameter of the hanger is approximately:
(A) 5 cm
(B) 7 cm
(C) 10 cm
(D) 13 cm
(A) 5 cm
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a. visible b. infrared c. X-ray d. radio e. ultraviolet
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A. by nucleosynthesis in the cores of massive stars B. in supernova explosions C. in the cores of protostars D. in the original interstellar clouds
When a load is placed on the middle of a horizontal beam supported at each end, the top part of the beam undergoes
A) tension. B) compression. C) either of these D) none of these
How much does it cost a household to run its coffee machine if it is used two hours per day and draws 1500 W? Assume the cost of electricity is $0.08/kWh
What will be an ideal response?