1. What are the advantages and disadvantages of using a humorous
appeal in advertising insurance, versus a fear appeal? Provide
examples of each.
150 words, please.
What are the advantages and disadvantages to using an
ethnography study versus a quantitative experiment? Also, what is
the ethnographic fallacy, and why should scientists be wary of
it?
Using powder X-ray diffraction to analyse a metal compound, a
simple pattern of peaks resulted, where the largest peak existed at
an angle of 2θ= 19.8°. However, when a similar sample was analysed
that contained a metallic impurity, this 2θ value became 22.4°.
What does this suggest is happening to the crystal lattice and
why?
(a) Describe the steps in conventional powder metallurgy shaping
process. What are the advantages and disadvantages of this process?
(b) How does the fabrication of thermoplastic polymer differ from
the processing of thermosetting polymer? (c) What is the heat
affected zone in welding? Why preheating is sometime performed in
welding?
Producers of metal powders started producing special metal
powders for the powder-bed fusion method (such as SLS) of additive
manufacturing. Manufacturing companies are advised not to use
conventional metal powders for additive manufacturing. Using
rational analysis, explain why.