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Can someone explain how to read a mm drum dial micrometer and check my work please?

7. Which of the following is false: a. The coefficient of thermal expansion is larger if the bond energy is smaller b. Ceramics are generally ionic bonding c. Van der Waals bonding is generally stronger than covalent bonding d. The free electrons in metallic bonding is reason for electrical conductivity 8. Which of the following is true: a. Polymers are generally denser than ceranmics b. Young's modulus of ceramics are similar to polymers c. Composites have higher tensile strength than metals d. Ceramics have low resistance to fracture than metals

Q2 For the beam section as shown in Fig. Q2, determine the following: a) X, the location of its centroid along x-axis b) Y, the location of its centroid along y-axis

Fair 11 The sheet of transparent material shown in the figure is surrounded by air. If the sheet were surrounded by water instead, what would happen to the displacement of the light ray with the same angle of incidence? (Assume that the index of refraction of the transparent material is still larger than that of water.) It would be larger. It would be the same. It would be smaller. Submit Answer Tries 0/20