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 ___.
举一反三
- 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?__________
- Which of the following statements is correct ? (1) There are two types of stress, normal stress(σ) and shear stress(τ). (2) On one section, the normal stress(σ) and the shear stress(τ) must be perpendicular to each other. (3) On one section, all the normal stress(σ) must be equal in size and same in the direction. (4) On one section, all the shear stress(τ) must be parallel.
- Which one of the following statements about image is NOT correct?
- Which one of the following statements about the Underground Railroad is NOT correct?
- Which one of the following statements about Abraham Lincoln is correct?