Suppose that both the cross-sectional area A and the length L of two straight rods are the same, and the axial tension forces P at both ends of the two are also the same. Only the materials of the two rods are different. Which statement about the stress σ and the elongation ΔL of the two rods is right?__________
举一反三
- There are two shafts in torsion with different materials. Knowing that the two have the same diameter and length and are exerted the same torque.Which one is correct in the following statements about the maximum shearing stress and the angle of twist ___.
- 词汇与结构 The main PCU consists of two _________ input rods, two individual control valves, and two separate actuators: one for hydraulic system A and one for hydraulic system B.
- She has two sons, ______ are teachers in the same senior high school. A: both of that B: both of them C: both of which D: both of whom
- As long as two forces have the same magnitude and are in opposite directions, these two forces form a couple.
- According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is a column with both ends hinged. A: equal to B: two times C: four times D: eight times