The Sustainable Product Engineering Centre for Innovative Functional Industrial Coatings (SPECIFIC) is an academic and industrial consortium led by Swansea University, with Tata Steel as the main industrial partner. It is funded by EPSRC, Innovate UK and the Welsh Government.The centre is developing the concept 'Buildings as Power Stations' and has been awarded £26 million, comprising £15 million from the EU, with the remaining money coming from EPSRC, Innovate UK, industry partners, and contributions from Swansea and Cardiff universities.
SPECIFIC has developed an 'Active Classroom', designed by architect Joanna Clarke and situated at Swansea University Bay Campus, showcasing innovative technologies for creating low carbon buildings which generate more energy than they consume. The Active Classroom won the Construction Excellence in Wales Award for Innovation in 2017.In 2018 the UK government announced £36 million funding for an Active Building Centre in order to accelerate market adoption of active buildings.
First post on this forum, hopefully in the correct category and conforming to forum rules.
Will the object in below scenario move upwards, downwards or will it remain stationary?
An object is submersed in a container 'A' which contains a fluid 'B' (e.g. water)
The trapezium shaped object...
For this,
Dose anybody please know of a better way to derive the formula without having ##c = \frac{\Delta Q}{m \Delta T}## then taking the limit of both sides at ##\Delta T## approaches zero? I thought ##\Delta Q## like ##\Delta W## was not physically meaningful since by definition ##Q## is...
I got these values but I wanted to make sure I was doing it the correct way
a) 0.548 J/g for system of 1 µm cubes
b) 9.131 x 10^19 J/g for system of 1 nm cubes
c) 273.890 J/g for system of 1 nm radius spheres
1) We know in case of beta decay if there is excess of protons or neutrons in the nucleus beta decay take place.
Force involved  weak interaction
Reason involved  to stabilize, to obtain proton neuton 1:1 ratio in the nucleus.
E. g., Beta minus  Carbon 14 transforms into Nitrogen 14
2) Case...
So I'm reading through Cengel's thermodynamics textbook, and came across this solved example:
Firstly, pressure in this context I'm assuming is vapour pressure? Since we're dealing with pure substances in this chapter.
But what's confusing me is, here's the diagram I have:
They've not...
I would like to read a specific line of a file. Everything I have seen does it by reading the file from the top, ignoring what is read until the line of interest is reached. Is it possible to move the pointer of the reader to the line directly, say by counting the number of line end sequences...
I have been away from thermodynamics for a while, and there is a young mechanical engineering student who asked my help in solving the question. For the life of me I am unable to solve this problem and I am at my wit's end.
I believe I can solve the problem if some pointers are provided. Also...
We know the time it takes the water complete the whole parabola is (sin(x) * 6.5 * 2) / 9.8.
So I come up with (sin(x) * 6.5 * 2) / 9.8 * cos(x) * 6.5 = 2.5, because the x component of the velocity is the same for the whole time.
But I get the results like these: x≈0.30929171+πn,1.26150461+πn...
Since I'm computer engineer and don't have much experiences with electromagnetism, I'd like to know if it is possible to make an electromagnetic signal (250khz  500khz) and send it to a point (with an error of maximum 1cm) in a room. If yes which devices do I need to setup my experiment?
I'm doing a master's degree, and I would like to research the longterm effects of neurostimulation on the brain.
It would be really helpful if I could find at least one research study that: (1) Performed MRI scans on a cohort of patients, preferably using diffusion MRI. (2) Had this cohort of...
So I'm looking at the book "Equilibrium Statistical physics" by Plischke and Bergersen. I'm doing the calculation of the specific heat of the 2D Ising model. I can't seen to quite get out the same expression as in the book  there are a coupe of minus signs that are different. I don't know if I...
Let us define matrix ##\mathbf{B}_n=[b_{ij}]_{n\times n}## as follows $$[b_{ij}]_{n\times n}:=\begin{cases} b_{ij} = \alpha\,,\quad j=i\\ b_{ij}=\beta\,,\quad j=i\pm1\\ b_{ij}=1\,,\quad \text{else}\end{cases}\,,$$ where ##\alpha\,,\beta\in\mathbb{R}## and ##n\geq2##. ##\mathbf{B}_4##, for...
A class project requires us to model the Otto cycle using ideal gas properties. We are not given the value for qin (specific heat in) and are told to make an intelligent approximation. My approach to this has been to find the calorific value of petrol, multiplying this by the density of petrol...
I am trying to find the specific heat (at constant pressure) ##C_p## coefficients linked to the JANAF model, which basically assumes that ##C_p## is a polynomic function of ##T##, for liquid nitrogen (at ##\approx## 97 K).
Before doing that, I am trying to find those for water (at ##\approx##...
https://uobrep.openrepository.com/bitstream/handle/10547/223815/ESWA%20agent%20paper%20v2.pdf;jsessionid=16B243A8F6C1FC1242A75969D18D00B7?sequence=5
here is some information but i am unable to dcode what is minimum requirement vs specific requirements. can you help me a bit in this case?
I'm reading the book "SemiRiemannian Geometry: The Mathematical Langauge of General Relativity" by Newman. There are definitely other questions on math background needed for GR, but my aim is to find which topics from that particular book aren't essential so that self study is more efficient...
If it's 20degrees outside and 68degrees inside it's warm when you come in from the cold. If it's 100degrees outside and 68bdegrees inside if feels cool. 68degrees is constant. Why does it feel different depending on the temp outside?
At first, I tried to calculate the heat energy required by doing this:
I realized I should calculate heat energy separately instead of grouping glass and water together so I did this:
But the answer is supposed to be 6.29 x 10^4.
I don't know how to solve this. Can anyone help please? Thank you
My thought process of how i do the ice melting part: (note I just ignore the copper/lead part cause I already know how to do that part)
Q_ice + Q_melt + Q_liquid so, it 0.018(2100)T+0.16(4190)T+0.018(334*10^3)
but on chegg they didn't use 2100 but they just use 4190 instead and I am confused...
Hello everybody,
Currently I am doing my master's thesis and I've encountered a physics problem which is very difficult for me to solve. The problem I have is finding equations for the magnetic scalar potential inside and outside a ferromagnetic wire for specific boundary conditions...
I need to calculate Hbonds in a specific direction of a Calpha atom of a protein. And, I need to calculate that from a PDB file.
Can anyone give me a general guideline/direction/idea regarding how to do that?
N.B. I need to write a python program.
Hello,
To first clarify what I want to know : I read the answer proposed from the solution manual and I understand it. What I want to understand is how they came up with the solution, and if there is a way to get better at this.
I have to show that, given a vector field ##F## such that ## F ...
I want to learn how to calculate maximum theoretical specific energy of various battery combinations consisting of a single metal and single oxidant, like for example Sodium  Sulfur, Potassium  Sulfur or even crazy stuff like Rubiddium  Iodine.
I asked this question on stackexchange but I...
I'm trying to see if I can calculate the peak draw weight of my bow based on the draw length and the velocity of the arrow and a known shape of a curve, but I'm not quite sure how to make such a function, if there even is such a way.
This is the shape of the draw weight plotted against...
Molecular potential energy of hydrogen in dependence with atomic distance for bonding orbital is given by picture below.
We can see that at large distances force between atoms is attractive and potential energy drops to minimum which corresponds to bond energy and length. This part of the...
What exactly is the difference in the way an general physics book (Halliday and Resnick, Young and Freedman) covers topics like mechanics, EM, and thermodynamics, compared to respective books like Kleppner and Kolenkow, Griffiths, and Schroeder, other than the amount of material covered for each...
My father has some sort of elderly, agerelated cognitive decline and/or disease (possibly dementia or Alzheimer's) that we haven't officially diagnosed yet (beyond his primary care physician simply saying that some cognitive decline is natural with age). One thing that puzzles me is why he...
It's been a few years since I failed my physics degree but I still really want to reach an understanding of QM, and I'm currently going through a QM textbook.
One thing I cannot understand no matter how much I think about it, is momentum uncertainty. In classical mechanics a specific kinetic...
So, at home I have a weatherstation which measures solar irradiation in the east, south and west in lux. I can read in these measured sensordata. From these measurements, I would like to calculate the solar irradiance on my windows. The solar energy formulas could help me with that. The work of...
By definition ##C = T_H \dfrac{\partial S}{\partial T_H} \bigg{)}_Q## so given ##A=4S## we first need to work out the area of the event horizon. More specifically, let ##\Sigma## be a partial Cauchy surface of constant ##v## in ingoing EF ##(v,r,\theta, \phi)## coordinates then ##A## is the...
Hey! :giggle:
Let $U\subset \mathbb{R}^n$ be an open set and $f:U\rightarrow \mathbb{R}$ is a $k$times continusouly differentiable function.
Let $x_0\in U$ be fixed.
The $k$th Taylor polynomial of $f$ in $x_0$ is $$T_k(x_1,\ldots ,x_n)=\sum_{m=0}^k\frac{1}{m!}\sum_{i_1=1}^n \ldots...
Homework Statement:: why does heat capacity depend on the mass/size of the object when it's units is J/K , and why is specific heat capacity dependent on the material/substance when it's unit is J/kgK?
Relevant Equations:: Q=Cθ
Q=mcθ

Hey guys! I'm currently struggling with a specific thermodynamics problem.
I'm given the entropy of a system (where ##A## is a constant with fitting physical units): $$S(U,V,N)=A(UVN)^{1/3}$$I'm asked to calculate the specific heat capacity at constant pressure ##C_p## and at constant volume...
Two cylinders A and B fitted with pistons contain equal amounts of an ideal diatomic gas at 300 K. The piston of A is free to move, while that of B is held fixed. The same amount of heat is given to the gas in each cylinder. If the rise in temperature of the gas in A is 30 K, then the rise in...
My first question is about the mass distribution plot (43.11). Since fission involves two fragments, you would think that for each point there may be a corresponding point on the other side that is connected by a horizontal line. This is further reinforced by the fact that in the middle of the...
I wonder how to find theoretical physics labs which have high level expertise in specific areas. Is there an online DB or "ranking" by area rather than by country?
Also looking for HCR in TP.
Cheers!
a)
Ew = EL + Ei
mwc(T2T1) = miL + mic(T20)
160 x 4.2 x (30  20) = 20L + (20 x 4.2 x 20)
L = (6720  1680)/20
= 252 J/g
b)
accounting for 3 gram of melted ice
160 x 4.2 x (30  20) = (20  3) + (20 x 4.2 x 20)...
Hey! :giggle:
We have the following linear maps \begin{align*}\phi_1:\mathbb{R}^2\rightarrow \mathbb{R}, \ \begin{pmatrix}x\\ y\end{pmatrix} \mapsto \begin{pmatrix}x+y\\ xy\end{pmatrix} \\ \phi_2:\mathbb{R}^2\rightarrow \mathbb{R}, \ \begin{pmatrix}x\\ y\end{pmatrix} \mapsto...
Let's begin with the first point.
a.I) Apply a generic boost in the yz plane (take advantage of the arbitrariness in deciding the alignment of the y and z axes).
\begin{equation*}
B_{yz} =
\begin{pmatrix}
\gamma & 0 & \gamma v_y & \gamma v_z \\
0 & 1 & 0 & 0 \\
\gamma v_y & 0 &...
The specific heat capacity at constant volume and the specific heat capacity at constant pressure are intensive properties defined for pure, simple compressible substances as partial derivatives of the functions u(T, v) and h(T, p), respectively,
$$c_v=\left ( \frac{\partial u}{\partial T}...
Hey everyone!
Here is the problem I have been tackling but did not end up with the correct answer
The extra red arrows I have labelled in myself and called these distances h1,h2 and h3. I assumed the pressure to be the same at levels A & B, hence i have established expressions for both of...
I did (0.90.1)/(1.50.5) = 0.8/1 > 0.8 m/s^2
This doesn't look right to me. Is this actually correct or do I need to solve the problem a different way?
Hi,
A quick question on a conundrum I seem to have encountered. My main question is: why is it wrong to use the formula above instead of the SFEE approach?
My approach:
Use the formula:
$$ w = \frac{R}{1n} (T_2  T_1) $$
From the data book, ## R = 0.287 ## kJ/kg K and ## n = \gamma = 1.4 ##...
I have a Hypothesis on one potential cause for allergies and a potential cure based on that hypothesis. Unfortunately I have absolutely no way to test my hypothesis, Is there any way for me to get in contact with people studying that field?
I found that f= x 2yz. To maximize f, I can first inspect the solutions to grad(F)=0. z=y=0 pops out, but I'm not sure what to do with the xcomponent equaling 1. Do we just include (x,0,0) as a solution? I think the problem wants specifics though, based on what I've seen previously from...