Make a sketch of SF 4 using hatched and solid wedges if
necessary for the three-dimensional...
Make a sketch of SF 4 using hatched and solid wedges if
necessary for the three-dimensional structure. Draw the molecule by
placing atoms on the grid and connecting them with bonds.
Derive the density of states of electrons in a three dimensional
solid. Using this density of
states show that the specific heat of electrons (which is a
fermion) in a three dimensional
solid is linear in temperature T.
Draw a planar structure for the following compound using dashed or solid wedges to show the stereochemistry of the substituent groups. To be graded properly, include the hydrogen atoms on the chirality centers (asymmetric carbons). Given cyclohexane in a chair conformation, substitute two of the H labels with methyl and tert-butyl to construct the more stable conformation of trans-1-tert-butyl-3-methylcyclohexane. Use the numbering provided on the ring.
For a three-dimensional (3D) solid, we have
found the low-temperature heat capacity to be proportional to T3.
How does
it depend on the temperature for the two-dimensional (2D) graphene?
Hint:
In order to give a correct answer to this question, you have to
know a curious
fact about the phonon dispersion in graphene. We have seen that the
acoustic
phonon branches in both one dimension and 3D have a dispersion
with
?(k) ∝ k. For graphene, this is not so:...
A homogeneous three-dimensional solid has a heat capacity at
constant volume CV that depends on temperature T. Neglecting
differences in the transverse and longitudinal waves in the solid,
there are 3N vibrational modes, where N is the number of atoms in
the solid. Here, the solid has N = 3.01 x 1023 atoms which occupy a
total volume V = 18.0 cm3 . There are two transverse shear waves
and one longitudinal wave; all waves have the same speed of...
A solid was dissolved in water and analyzed using thin layer
chromatography. All the necessary precautions were taken to get a
good result. The chromatogram had three spots with Rf
values of 0.25, 0.38, 0.74 in the column for the solid. If a fresh
sample of the solid were tested to measure the melting point, would
the melting point have been sharp or have been a broad range?
Explain your answer.
1. Sketch a connected 2-dimensional complex with three 2-cells,
8 1- cells, and 5 0-cells.
Draw three examples of a connected 1-dimensional complex with 7
0-cells and 6 1-cells.
Sketch a connected 1-dimensional complex with 7 0-cells and 7
1-cells.
Sketch a connected 1-dimensional complex with 7 0-cells and 8
1-cells.
Is it possible to construct a connected 1-dimensional complex
with 8 0-cells and 6 1-cells? Explain.
Describe and sketch shallow slope failure and base slope
failure. Explain three aspects that make the method of slices more
versatile compared to mass procedure of slope stability analysis.
Explain the parameters stability number and stability factor and
their relationship. Please answer the question from principle of
geotechnical engineering 9th edition book
Using Java language (in program NetBeans).
1) Using a 2 dimensional array
Your company has 4 grocery stores. Each store has 3 departments
where product presentation affects sales (produce, meat, frozen).
Every so often a department in a store gets a bonus for doing a
really good job.
You need to create a program that keeps a table of bonuses in
the system for departments. Create a program that has a two
dimensional array for these bonuses. The stores can...
Create a new Java project named Program 4 Three Dimensional
Shapes. In this project, create a package named threeDimensional
and put all 3 of the classes discussed below in this package
Include a header comment to EACH OF your files, as indicated in
your instructions. Here's a link describing the header. Note that
headers are not meant to be in Javadoc format.
Note that Javadoc is a huge part of your grade for this
assignment. Javadoc requires that every class,...
Create a new Java project named Program 4 Three Dimensional
Shapes. In this project, create a package named threeDimensional
and put all 3 of the classes discussed below in this package
Include a header comment to EACH OF your files, as indicated in
your instructions. Here's a link describing the header. Note that
headers are not meant to be in Javadoc format.
Note that Javadoc is a huge part of your grade for this
assignment. Javadoc requires that every class,...