# Physics 1112/1114 General/Basic Physics 物理代考力学热学声学光学电学物理学代写

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# ECON 120A: Econometrics 计量宏观微观经济学代考金融财务会计代写代做

1. a) The null: The proportion of registered voters who are planning to vote for the incument president <0.5
The alternative: The proportion of registered voters who are planning to vote for the incument president ≥0.5
b) Test statistic=(636/1200-0.5)/sqrt(0.5*0.5/1200)=2.08
c) CV is Z0.05=1.64
d) From the standard normal table, the p-value for the test statistic, z = 2.08 is 1-0.9812=0.0188.
e) Since p-value is lower than 0.05, we reject the null and conclude that the proportion of registered voters who are planning to vote for the incument president increases significantly at 5% significance level.
f) We say the proportion of registered voters who are planning to vote for the incument president increases significantly, while in fact it does not.
g) We say the proportion of registered voters who are planning to vote for the incument president does not increases significantly, while in fact it does.

# 代码代做编程Python代考代写DSC 20 – Prgrmng/DataStruc for Data Sci

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def code(*args):
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# Quantum Mechanics量子力学代考物理代写代做

Question 8
The primitive vectors of the face-centred cubic (fcc)lattice are Not yet
a = (a/2)(O,1,1), b = (a/2)(1,0,1) and c = (a/2)(1,1,0) answered
so that points on the Bravais lattice have position vectors,
Rn1,n2,n3 = n1 a + n2 b +n3 c
The constant a is the lattice parameter and n1,n2 and n3 are integers. What is the shortest distance (in units of the lattice para
nneter a,otice have)? [15
question
the lattice and,for a given point, how many points surrounding it are this far away (ie. how many nearest neighbours does a poimarks]
Select one:

1. distance= 0.5 a,9 nearest neighbours
2. distance = a, 12 nearest neighbours
3. distance =0.7071 a, 12 nearest neighbours
4. distance= 1a，8 nearest neighbours
5. distance = 0.5a, 2 nearest neighbours
6. None of these answers are correct
7. distance = 0.7071a, 6 nearest neighbours

# 全球top30 美国UC系高校Linear Algebra 线性代数代考满分

(a) State Cauchy-Buniakovski-Schwartz Inequality on an inner product space V . Don’t forget
to say when equality is attained.

(b) Prove that
(1 · 2016 + 2 · 2017 + 3 · 2018 + · · · + 2015 · 4030)2 < (12 + 22 + · · · + 20152) · (20162 + 20172 + · · · + 40302).
Explain why this is not an equality.