Provide a brief descriptions for “strength” and “toughness”
properties of metals. What kind of testing methods used to measure
them? For what applications this property will be crucial?
A) Explain the general responses of ceramics, metals and
polymers to mechanical and electrical loads in terms of both
primary and secondly chemical bonds
B) Classify the following materials as a polymer, metal,
ceramic, or composite: Boron Nitride, Bricks, Plexiglas, Concrete
and Manganese.
Describe laboratory and geophysical methods to measure intact
rock strength. Explain why measurements of rock strength alone are
insufficient to assess the difficulty of excavation and the likely
stability of the rock mass during and after construction.
Explain, at the microscale, the process of fatigue,
with emphasis on why metals experience fatigue.
A pressure vessel is made of aluminum alloy and
operates at 15 cycles per minute. It operates 50% of the time at a
stress amplitude of 1400 psi; the fatigue life at this stress level
is 1,000,000 cycles. The other 50% of the time a stress amplitude
of 2100 psi is exerted on the vessel; the fatigue life for the
material at this stress level...
Questions
1.) Discuss methods to increase musculoskeletal strength and
protect bones in older adults.
2.) Create a nursing plan of care for a patient with a
musculoskeletal disorder of your choice.
Thanks
Explain the difference between an increase in demand and an
increase in quantity demanded. Draw separate graphs of each to help
support your answer. (Be sure you have addressed why each of these
changes have occurred