In the tensile test of single crystals, the proportional limit stress depends upon the angle of the slip plane and the slip _____________relative to the tensile axis.
Fill in the blank(s) with the appropriate word(s).
direction
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The final phase of Pangaea's break-up was the split of
A) Antarctica from Australia, and North America and Greenland from Europe. B) South America from Africa, and Antarctica/Australia from India/Madagascar. C) Antarctica from Australia, North America from Europe, and Europe from Asia. D) Africa from Antarctica/Australia, and India/Madagascar from Asia.
An electrical motor spins at a constant If the rotor radius is what is the linear acceleration of the edge of the rotor?
A) 572,400 m/s2 B) 5707 m/s2 C) 281.6 m/s2 D) 28.20 m/s2
To explain the retrograde motion of planets, Ptolemy introduced the concept of ________.
Fill in the blank(s) with the appropriate word(s).
A uniform beam having a mass of 60 kg and a length of 2.8 m is held in place at its lower end by a pin. Its upper end leans against a vertical frictionless wall as shown in the figure. What is the magnitude of the force the pin exerts on the beam?
A. 0.68 kN B. 0.57 kN C. 0.74 kN D. 0.63 kN E. 0.35 kN