物理代写

靠谱physics物理考试代考作业代写:物理学专业学霸在线接单• 物理导师直接与您1对1咨询沟通•代写之家•一步到位•承接各类,网课代考,physics物理代写:力学-热学-电磁学-光学-四大力学等等 •  高分高效• 最优惠的价格• 安全可靠 • 无忧售后• 准时准点

物理作业代写-靠谱网课物理代考-physics quiz/exam代考代写✔️

留学生物理代写介绍

大学里面大多数的理工科专业都是要学物理课的,但是有的专业学得多有的学得少,和物理的联系有远有近。大学的物理学,一般都是从牛顿那个时代,一点一点学到现代物理。给我的感受是,从牛顿那个时代,一只学到19世纪末电磁学年代,都比较容易接受和理解,因为这个时代的物理学,研究的还是我们的真实的生活中的各种现象,都还好理解。计算题无论有多难,努把力、多花点时间,都能够搞懂。但是进入普朗克时代以后,明显感到物理学的思维就产生了本质的飞跃。这个阶段的物理,学起来完全是拼智商和天赋。没有那1%的天赋,即使付出99%的努力,也是瞎折腾。自己学到这里时,非常的懵、非常的迷茫、非常的困惑。有一种义和团的老农民,突然遇到洋枪洋炮的感觉;或者有点像当年伊拉克的萨达姆,排出了十万坦克大兵准备大战一场,结果发现美国鬼子玩的电子战、信息战,连个影子都看不到,就被老布什给灭了。 为了解决这个物理魔怔,我们特此集结了一些物理大神在线帮忙答疑解惑,

专业人做专业事,代写之家让您面对物理不再害怕。

物理代写1-代写之家

物理代写范围

物理也会分了好几个方向,普通物理学(力声光电磁),理论物理等等,以下列出我们接单常见的一些科目,因为条幅有限,如有需要其他未列出科目可以随时咨询我们!

物理代写2-代写之家
  • Modern physics 近代物理
  • Mechanics 力学
  • Electricity and magnetism 电磁学
  • Optics 光学
  • Acoustics 声学
  • Atomic physics 原子物理
  • Quantum mechanics 量子力学
  • Thermodynamics 热力学
  • Classical mechanics 经典力学
  • Statistical mechanics 统计力学
  • Computational physics 计算物理学
  • Solid-state physics 固态物理学
  • Electronics 电子学
  • Particle physics 粒子物理学
  • Astrophysics & cosmology 天体物理&宇宙学
  • Condensed matter physics 凝聚态物理
  • ……未完待续

步骤流程

Step 1:前期沟通

添加联系客服,了解您的具体科目时间等需求情况,并提供相关资料给我们,有任何疑问都可随时咨询获取解答。

Step 2:导师审核

需求提交之后,我们会在最短的时间内要求导师对资料进行评估,审核确认能接之后,我们会与您联系确认最优惠的价格。

Step 3:处理订单

订单接收之后,导师开始准备work,请保持联络畅通,确保任务处理过程中双方疑问能够及时得到有效沟通。

Step 4:售后服务

收到answer的14天之内确认,无忧售后,让您100%满意安心,安全有保障!

为什么选择代写之家的服务

为什么选择代写之家的

(1)靠谱高质量

深知现如今靠谱的人实在是难找,我们提供完整解题步骤及分析过程,质量是生存之本,客户来这里要的就是质高,这也是我们老客户一直陪伴的原因所在。

(2)准时交接

绝对拒绝拖延上交,due time就是红线!只能按时或者提前完成,同时接受8小时内急单。

(3)经验丰富

各位学霸大神皆为全球高校top100以内的高材生,答题经验丰富,面对不同学校科目,学霸自有方法懂得应变,保证质量。

(4)贴心服务

24/7不间断在线客服,小姐姐一直跟进您的订单进度,有任何问题都不用遮遮掩掩,随时联系随时解答,只有取得的您满意,我们才能感受到这份工作的成就感。

物理代写3-代写之家

AMC10/12,BMO,北美驯鹿数学竞赛代考,BPho,Physics Bow物理竞赛代做

代写英国数学竞赛中学IMC,JMC,BMO;代做美国数学挑战赛(AMC10/12);Math Kangaroo袋鼠数学思维挑战活动代做;Caribou Contests 北美驯鹿数学竞赛代考;Euclid Mathematics Contest欧几里得数学竞赛代做;Physics Bow物理碗竞赛代考英国物理奥赛(BPHO)代写;澳大利亚科学竞赛(BSC)代写;加拿大化学竞赛CCC代写

自从疫情发生以来,以上竞赛线上举行的频次越来越多,我们也因此接到过同学们的许多求助,因此上述竞赛我们也都有接过,当然也是取得了不俗的成绩,可高分可金牌,当然也不是廉价帮忙,真的不要开口就几百人民币来寻求帮忙,怕是咱们平时上几节竞赛辅导课都远不止这个价格,而且这还是含金量满满的竞赛,对于自己申请名校是非常有帮助的!选择代写之家,快速帮您拿下高分成绩。以下为一些竞赛代考实例

英国数学竞赛BMO代写
英国数学竞赛BMO代写
北美驯鹿数学思维活动竞赛代做
北美驯鹿数学思维活动竞赛代做

竞赛举办方和赛事评委的名望也对赛事含金量有一定的影响。在选择竞赛时,大家可以根据以上标准擦亮眼睛寻找适合自己的竞赛。在选择参加国际竞赛上,我们首先需要关注的是自己的兴趣及未来专业方向,参加竞赛的最终目的是为了自己的学术热情和学术能力做背书,所以要尽可能地保证参加国际竞赛的属性和未来要申请专业方向的一致性。其次,我们要结合自身的基础及优势确定参加的国际竞赛个数和类别,如果自身能力不是特别强,我们可以选择一些相对容易获奖,并且可以激发学习兴趣的国际竞赛,比如认为AMC10对自己来说难度高,可以选择参加澳大利亚的袋鼠或者欧几里得来进行过渡,毕竟任何事情都不是一蹴而就的。竞赛成熟度也很重要,最简单的判断方法就是查询这个比赛有多少人参加(影响力)、哪些国家的人参加、获奖率如何等。根据参赛人数,获奖比例分析出这个比赛的分量。代写之家学霸建议同学们根据自己的能力水平,尽可能选择参赛人数多,获奖比例相对小的比赛。
最后,祝愿大家都能申请到自己的DREAM SCHOOL!

英文伦敦大学学院UCL代考PHAS0042 Quantum Mechanics量子力学物理代写

University College London英国伦敦大学学院物理专业量子力学代考PHAS0042 Quantum Mechanics,UCL期末考试,开学补考欢迎来询,经验丰富!诸如:PHAS0041:-Solid State Physics固体物理学,PHAS0038 – Electromagnetic Theory电磁理论,MATH0025 Mathematics For General Relativity相对论,PHAS0025 – Mathematical Methods III数学方法这些课程都可以接!近两年针对UCL英国伦敦大学学院的exam代考考试经验丰富,通常国内下午5点开考,时长3-4小时,专业靠谱英国代考

代寫之家提供包括數學代考、 經濟代考金融代考 、物理代考、化學代考,CS代考,電氣工程代考,留學生代考、online quiz代考、Accounting代考、網課代考、網課exam代考final exam代考、留學生online quiz代考、online exam代考HK留學生代考、香港exam代考等在内的香港留學生exam代考服務。

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

基础物理学的力学、热学、声学、光学、电学物理代考代写代做,測驗 ,香港代考,香港代寫加微信:OnlineHelp985。题目难度居中,但是考试形式较为尴尬,每次只能写完一题才能到下一题,无法返回上一题查看,题量大时间紧!整体挑战难度较高。

physics物理代考英文物理代写,除此之外还可代考代写热力学量子力学代考流体力学代考 、流体力学代写、工程代考、相对论代考电磁学代考、力学代考、经典力学代考、物理作业代写 #英国物理代考 #物理考试代考 #澳洲物理代考 #美国物理代考 #北美代考 #加拿大物理代考

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Quantum Mechanics量子力学代考物理代写代做

随着量子力学Quantum Mechanics慢慢被大众所知晓,一些围绕着它创作的梗也逐渐流行开来,比如说“遇事不决,量子力学”。而在对其进行调侃的同时,很多人却说量子力学很恐怖。的确如此,代考代写物理学中的四大力学金刚量子力学、电动力学、热力学与统计力学、理论力学理解起来都比较飘渺。

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

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数学物理方程代考,美国代考,加拿大代考,澳洲代考,英国代考

数学物理方程具有很强的物理背景,代表了前电脑时代人类的最高智慧水平,觉得难是很正常的。代写之家数学代考、 物理代考、exam代考线上代考、online test、take homework 服务。基础物理声光电磁学,理论物理量子力学,经典力学,电动力学,统计力学等,数学离散数学、数理统计、抽象代数、微分方程、测度论、实变函数、数学物理方程等代考代写

在很多大学,数学物理方程代写这门课程是数学专业和物理专业学生混合在一起上课的。

数学物理方程了,方程自然是从物理里面来的,背景也都是些物理背景(当然也有不是源于物理的方程,同样的方程也有很多解释的方式)。这门课的主要目的是教你解方程,因此大多数老师只会简略地分析一下方程的物理背景,或者干脆留给学生自己看,而数学出身的作者编的教材关于物理背景的部分基本上也都是写得能看的样子就算了。你要是数学系的学生觉得这些背景费解,一开始直接跳过都没啥太大的问题,后面再慢慢想。你要是强迫症,非得搞清楚一点,先学学物理或许好一点。各种微分方程千千万,其中最具有代表性的是三个:波动方程,热传导方程,拉普拉斯/泊松方程(也叫场方程)。

下面是一则数学物理方程作业的实战

Question 1)
(a) Show that, by choosing suitable values for P and Q, Green’s Theorem in the
plane leads to the formula for the area enclosed by a loop i.e.,
Area =
1
2 ˛loop
xdy − ydx
[2 marks]
(b) Use this to find the area of the closed curve defined by
x = cos 
y = 3 sin 
where 0 ≤  ≤ 2. [4 marks]
Question 2)
Consider the vector field, F = x2yz i+xy2z j+xyz2 k. Use the divergence theorem
to evaluate
” F · ds
over the surface of the unit cube defined by the ranges x = [0, 1]; y = [0, 1]; z = [0, 1].
[4 marks]
Question 3)
Consider the vector field F = (2x+yz) i+(2y+xz) j+xyk. Using Stokes’ theorem,
show that ¸ F · dr = 0 around any closed curve. [2 marks]
Question 4)
Consider the vector field, F = y i+x k. Use Stokes’ theorem to find ¸ F·dr around
the circular loop in the xy-plane defined by x2 + y2 = a2. [4 marks]
Question 5)
For gravity, g, we can define the divergence as, ∇ · g = −4G, where G is the
gravitational constant and  is the mass density. The divergence theorem states that,
“S
g · ds = °V
∇ · g dV.
By applying the divergence theorem to a point within the Earth’s radius, a distance
r from the centre:
(a) Draw a sketch showing a suitable choice of surface, S. [2 marks]
(b) Show that the magnitude of g is given by:
g(r) = −
4
3
Gr
(Assume that the Earth has a constant density.) [2 marks]
Question 6)
The square OABC lies in the xy-plane and is defined by the points:
O = (0, 0, 0);A = (1, 0, 0);B = (1, 1, 0);C = (0, 1, 0). The vector field, b, is given by,
b = 2yz i + (x2 − y2) j + (y + x2 − z2) k.
(a) Evaluate the line integral, I1 = ¸ b · dr, following the path O-A-B-C-O.
[4 marks]
(b) Determine ∇ × b. [2 marks]
(c) Evaluate, I2 = ˜OABC(∇ × b) · ds, over the square OABC. [4 marks]

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热力学和流体力学代考代写Thermodynamics,Fluid Mechanics

MCEN机械工程系课程Thermodynamics and Fluid Mechanics代写物理代写中的热力学也经常有代考接单,此次是六成流体力学内容,四成热力学内容,由两个写手共同完成,3小时考试热力学与流体力学代考过程非常完美!

流体力学代考
Fluid Mechanics流体力学代写代考

以下只展示部分考前例题

Part I – Thermodynamics Question 4 (10 marks)
Consider an ideal Otto cycle, with a compression ratio of 11. At bottom dead centre before
the compression, the air is at 100 kPa, 300 K. The temperature at the end of the isentropic
expansion process is 700 K. Assume constant specific heats at room temperature, and the
following properties of air:
Cv = 0.718 kJ/kg.K, Cp = 1.005 kg/kg.K, R= 0.287 kJ/kg.K and γ = 1.4.
(a) Show and label the cycle on a P-v diagram, labelling all states, work and heat
transfer processes. (4 marks)
(b) Find the temperature and pressure at the beginning of the constant volume heat
addition process. (2 marks)
(c) Find the temperature and pressure at the beginning of the isentropic expansion
process. (2 marks)
(d) Determine the efficiency of the cycle. (2 marks)

Part II – Fluid Mechanics Question 3:

A cylindrical vessel is partially filled with water, and starting from rest the vessel is
rotated at a constant angular velocity 𝜔. The velocity 𝑉􀰏 within the fluid depends on
radial location 𝑟, the time from the start of rotation 𝜏, 𝜔 and the fluid properties.
(i) Find the non-dimensional groups that relate 𝑉􀰏 and the other parameters of
relevance. (8 marks)
(ii) If, in another experiment, honey is rotated in the same vessel at the same angular
speed, determine from your dimensionless parameters the ratio of the time for the honey and
water to attain the steady motion. Assume water and honey to be of the same density and
honey to be 2000 times more viscous than water. (4 marks)
(iii) At steady state, determine and explain briefly which non-dimensional groups will
be irrelevant. Then, from the remaining relevant group/s determine how 𝑉􀰏 will vary with 𝑟.
(4 marks)

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物理代考代写Thermodynamics热力学代考physics代考

代写之家物理代考代写physics代考,拯救被逼疯的海外学子,葡萄牙语热力学代考Thermodynamics代考,因为不是是葡萄牙语卷面,客户非常担心我们没法进行代考操作,不仅担心翻译的正确性,还担心我们做题的质量,考前还特意要求进行了一场有偿测试,结果令她满意,但是真正考试的时候心慌慌的焦虑。。。她请朋友考时在在旁边将葡语翻译成英文供我们答题,最后过程非常顺利,成绩也是不出所料得了个高分,27/30,百分之九十的正确率✔,来之不易!

热力学代考
热力学代考
物理代考

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美国物理量子力学代考-物理代写-physics代写-电动力学代考

物理量子力学代考,量子力学(Quantum Mechanics),为物理学理论,与电动力学代考,热力学统计物理代写,理论力学代写并称为四大力学金刚,理论物理代写难度比基础物理学高出蛮多,这些科目基本是物理专业的学生才有的课程。量子力学是研究物质世界微观粒子运动规律的物理学分支,主要研究原子、分子、凝聚态物质,以及原子核和基本粒子的结构、性质的基础理论。它与相对论一起构成现代物理学的理论基础。量子力学不仅是现代物理学的基础理论之一,而且在化学代写等学科和许多近代技术中得到广泛应用。

量子力学代考-代写之家
物理代写

[6 pts] Calculate the product xp of the position and momentum uncertainties for the ground state
0 and for the rst excited state 1 of the harmonic oscillator. It may be useful to recall the de nitions
of the position and momentum operators in terms of ^a􀀀 and ^a+:
^x =
r
h
2m!
(^a􀀀 + ^a+); ^p = i
r
m!h
2
(^a􀀀 􀀀 ^a+): (1)
2 What is Momentum Anyway?
[10 pts] Prove that
d hxi

dt

hpi
m
:
Hint: it is helpful to recall the following formulas:
ih
@
@t
= 􀀀
h2
2m
@2
@x2 + V (x) ; (2)
h^ Qi =
Z 1
􀀀1
(x; t)^Q (x; t)dx; (3)
^p = 􀀀ih
@
@x
: (4)
3 Double Delta Potential
[14 pts] Consider a particle of mass m in a potential given by
V (x) = 􀀀[(x + a) + (x 􀀀 a)]; ; a > 0:
This system has two bound states for very large a, but only a single bound state for very small a.

  1. (2 pts) The stationary states in this potential may be taken to be either even or odd. Explain
    why in one sentence. (Hint: either look at the form of V (x) or consider the parity operator.)
  2. (4 pts) Sketch the wave functions of the two bound states for very large a. Be sure to label
    which of the two is the ground state and which is the excited state. Then sketch the wave
    function of the single bound state for very small a.
    For arbitrary a > 0, the bound state energies E are determined by the following transcendental
    equation for the variable  =
    p
    􀀀2mE=h:
    e􀀀2a =
    (
    h2
    m 􀀀 1; (x) even;
    1 􀀀 h2
    m ; (x) odd:
    (5)
  3. (3 pts) Find the energies of the even and odd bound states in the limit as a goes to in nity.
  4. (3 pts) Find the energy of the single bound state in the limit as a goes to zero.
  5. (2 pts) Estimate the value of a at which the system goes from having one bound states to two.
    You are NOT expected to solve for a exactly.
    2
    4 Half Harmonic oscillator
    [8 pts] Consider the half-harmonic oscillator potential (which represents, for example, a string which
    can be stretched but not compressed), given by the potential
    V (x) =
    (
    1
    2m!2×2 for x > 0;
    1 for x  0:
  6. (4 pts) What are the allowed energies? Explain your reasoning.
  7. (4 pts) What is the wave function for the ground state of the half-harmonic oscillator, written
    as a function of x? Make sure your solution is normalized.
    5 Two-Level System
    [14 pts] Consider the photons and polarizers described in class, which is an instance of a two-level
    system. Recall that the elements of the polarization vector correspond to probability amplitudes,
    similar to the expansion coecients cn of wave functions.
  8. (3 pts) For a photon incident on a linear polarizer aligned in the ^x direction (meaning that it
    transmits photons in the jxi-polarized state), what is the transmission probability if the initial
    polarization vector of that photon is ~E = Ex^x + Ey ^y?
  9. (3 pts) A photon prepared in the jxi state is incident on a linear polarizer oriented at angle 
    relative to ^x. Solve for and sketch a graph of the probability of transmission (i.e. the probability
    that the photon makes it through the polarizer) as a function of .
  10. (4 pts) As we showed in class, using the fjxi; jyig basis, an `x-polarizer’ transmits photons
    polarized in the x-direction while re
    ecting photons polarized in the y-direction. It makes a
    measurement of the operator (expressed in the fjxi; jyig basis)
    1 =
    
    1 0
    0 􀀀1
    
    : (6)
    A polarizer rotated at +45 degrees relative to the ^x-axis measured the operator
    2 =
    
    0 1
    1 0
    
    : (7)
    What is the operator corresponding to a polarizer oriented at +30 degrees relative to the ^x-axis?
  11. (4 pts) Consider a particle prepared in the right-hand polarized state, j i = jRi = p1
    2
    (jxi + ijyi).
    For times t < 0, the Hamiltonian for this particle is 0: in other words, it does not interact with
    anything and nothing changes about its state. For times t  0, the following Hamiltonian is
    turned on:
    ^H
    =
    􀀀
    jxihxj 􀀀 jyihyj
    
    =
    􀀀
    jxi jyi
    
    
    
    1 0
    0 􀀀1
    
    
    
    hxj
    hyj
    
    ;  0: (8)
    Under the time evolution governed by ^H, is there ever a time t when the state becomes
    [a] j (t)i = jLi = p1
    2
    (jxi 􀀀 ijyi)? Explain your reasoning. If yes, what is the rst time t
    when this occurs?
    [b] j (t)i = jxi? Explain your reasoning. If yes, what is the rst time t when this occurs?
    3
    6 Rigged Hilbert Space
    [8 pts] Consider complex-valued functions f; g of a real variable x, with inner product de ned as
    hfjgi =
    R 1
    􀀀1 f(x)g(x)dx. For the following functions, name the most restricted space to which they
    belong: nuclear space, Hilbert space, extended space, or none of the above.
  12. (2 pts) f(x) = sin(x);
  13. (2 pts) f(x) = sin(x)e􀀀x2 ;
  14. (2 pts) f(x) = 1
    x8+1;
  15. (2 pts) f(x) = ex2 .
    4

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电磁学代考(electromagnetism)是研究电磁现象的规律和应用的物理学分支学科,算是基础物理学,既然是基础物理学,理工科大家基本都会学到的学科,所以我们当然也是擅长物理代考物理代写

电磁学主要讨论关于电磁现象的实验结论的总结――通过实验归纳出电现象、磁现象和电磁感应,最后总结出麦克斯韦方程组。

电磁学的各种实验结论本质上都可以通过麦克斯韦方程组推导出来,包括电路分析中无处不在的欧姆定律。

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  1. a) A jet of water coming out of a tap always breaks up into a series of drops. It has been
    observed experimentally that these drops vibrate. Use dimensional analysis to predict
    how the frequency of vibration of the water drops will depend on their density, radius
    and surface tension. f6g
    b) An ideal polarising filter is oriented such that incident horizontally polarised light
    is transmitted 100% and vertically polarised light is all absorbed. (These directions
    relate to the electric field).
    (i) When light of amplitude E0 = 200 Vm􀀀1 and linearly polarised at 45% to the
    vertical is incident, what polarisation and what amplitude is transmitted? f4g
    (ii) When circularly polarised light of the same amplitude is incident, what polarisation
    and what fraction of the incident amplitude is transmitted? f3g
    c) An outdoor sound system comprises two identical loudspeakers distance d = 5 m
    apart as sketched in the diagram below. As part of a test they are both fed the same
    pure note, of same amplitude A0 and phase, corresponding to a sound wavelength
    l = 0:6 m (and same frequency w).
    L
    y
    d

    P
    y = 0
    S1
    S2
    (i) The speakers S1 and S2 emit waves
    y1 = A0 cos (kx1􀀀wt) ;
    y2 = A0 cos (kx2􀀀wt) ;
    respectively, where k is the wavenumber and x1 and x2 are distances measured
    from S1 and S2. Show that the total wave at P is given by
    y (x; t) = 2A0 cos (kX 􀀀Wt)cos(kD) ;
    and define X;W and D. f4g
    (ii) Show that for y << L the sound amplitude at point, P, in the diagram is expected to be proportional to cos pdy lL f4g: (iii) An observer stands L = 20 m away, at y = 0. They move along the positive y-direction. At what value of y(> 0) will they first hear a maximum amplitude.
    f4g
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