Reproduction: Explain why asexually reproducing organisms are
generally found in environments that do not change very much
through time, while sexually reproducing organisms are very
successful in environments that change dramatically through
time.
Animal Behavior: How does an animal’s behavior aid survival and
reproduction? Provide an example to illustrate your comments. In
your response, be sure to include information from the reading to
support your
Topic - Construction: Structural, loads,
tension
1.) Explain why pure tension members are the most efficient
structural types for carrying building loads?
2.) How structural members behave when they are subjected to
tension, compression, torsion, and bending forces in
structures.
(Please include references, links, if used.)
The glass core of an optical fiber has an index of refraction 1.60.
The index of refraction of the cladding is 1.49.
A) What is the maximum angle a light ray can make with the wall of
the core if it is to remain inside the fiber?
Express your answer with the appropriate units.
Explain why the stiffness of a discontinuous fiber composite is
less than that of a continuous fiber composite with the same
constituents and same proportion of reinforcement.
Using an argument based on intermolecular forces, explain why
there is a surface tension that develops between air and water? How
would a surfactant disrupt this tension?
Explain why firms choose to decentralize and give an example
Explain why NPV is generally preferred over IPR when choosing
among competing or mutually exclusive project. Why would managers
continue to use IRR to choose among mutually exclusive
projects?
Explain why surface tension and viscosity decrease with
increasing temperature.
Why do substances with high surface tensions also tend to have
high viscosities?