How is an image from a CT scan made from 2D X-ray images? A. The 3D image uses only the parts of the 2D images that show
transmission of X-rays.
B. A computer combines many 2D images into a 3D image.
C. Several fuzzy 2D images are combined to make a clearer 2D
image.
D. The CT scan machine pastes many smaller 2D images together to
make a larger 2D image.

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.