An fe analyst performed a vibrational analysis on a rotating shaft and noted that the percentage error between fea and analytical solution increased with increasing mode shape number. list the possible factors to which you would ascribe this observation.

What is a monomer? how do they form a ploymer from the view point of chemical bonding?

The short distance from the objective lens to the object causes problems at high magnification. which of the following is the most serious? a. cleaning the object surface b. positioning the object c. reflection from the object surface. d. illumination of the object

With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.