As the Nobel week is coming closer, what are your predictions for this year Nobel Prize in physics?]]>

"Physics Nobel nominees, 1901–70"

https://physicstoday.scitation.org/do/10.1063/PT.6.4.20220929a/full/

is an update extended to 1970

of "Physics Nobel nominees, 1901–66" (2017)

https://physicstoday.scitation.org/do/10.1063/PT.6.4.20170925a/full/

related...

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and we did this question :

what is the work that has to be done for a spring to have an extension of length e

as the area of the force extension graph gives the work done, we get the...

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I can tell you I grasped...

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I want to create a side menu.

I have written the following in a file menu.js :

JavaScript:

```
const menu_items = {
id: 'menu',
title: 'Menu',
type: 'group',
children: [
{
id: 'Option1',
title: 'Option 1',
type: 'group'...
```

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I imagine ##f(x)## has horizontal asymptote at ##x=k##. Since the graph of ##f(x)## will be close to horizontal as ##x \rightarrow \infty##, the slope of the graph will be close to zero so ##\lim_{x \rightarrow \infty} f'(x) = \lim_{x \rightarrow \infty} f^{"} (x) = 0##

But how to...

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But I'm having trouble taking...

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The idea is to have 2 clocks at position A and B. The clocks are synchronized by sending a light pulse from position S over 2 equal distances x.

The receiver is at position R at a distance y rectangular to the direction AB and exactly in the middle between A and B and right below S...

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This thread is for showing your images of solar activity taken with YOUR cameras, telescopes etc.

That is, don't post images from SDO, SOHO or any other professional sources unless you specifically want to ask "how do they do that and what are those solar features I can see?

This...

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The rules:

1) https://www.nytimes.com/games/wordle/index.html

2) Post your result.

3) Do not spoil the answer.]]>

I need some help in react.

I have a code for a web application and I want to change the logo. The logo I want to use is in the public folder, in this folder there is also a favicon with the old image. In the src folder there is a folder images with the old image. In the src folder...

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I have a problem with the postulate of the invariance of the speed of light.

When we move away from a light source it is redshift, it is the sign that the relative velocity between us and the light source has changed. If a stationary observer observes the phenomenon, he will measure that...

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I need some help solving those two question. I've attached my attempted solution below. Could i solve the transfer function any further?

Thank you for your help

]]>

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$$

|s_{N+k} - s_N| = | (-1)^{N+2} a_{N+1} + (-1)^{N+3}a_{N+2} + \cdots + (-1)^{N+k+1}a_{N+k} | \lt |a_{N+1}| + |a_{N+2}| + \cdots + |a_{N+k}|

$$

Though, from ##\lim (a_n) = 0## we can establish ## n \geq N \implies |a_n| \lt \varepsilon##, that is all the individual...

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Note: Please read what she is talking about before commenting.]]>

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My attempt to answer this question: With the radii in the ratio ## 1: \frac12: \frac13 ##, the area of the corresponding circles will be in the ratio of ##1: \frac14: \frac19 ##. The areas of the three rings will be in the ratio of ## \frac34 : \frac{5}{36}: \frac19 ##

So, if three...

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Simplified, Class A (and several other classes and instances of classes) has a string that stores the tooltip text and updates it every frame.

Class B contains the logic to generate the...

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I was just watching a video, and to my surprise I was able to understand a little about GR (General Relativity). I'm looking to confirm my understanding, and also ask some basic questions.

From what I understand in Newtonian gravity the space time is considered to be uniform...

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I have a question regarding permanent magnets and the force they generate on particles, which is far from my comfort zone. I have the option on using two types of permanent magnets and with two different setups. Imagine that we want to attract small particles using the magnets...

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But, what happens if the object moves in a constant velocity in a frictionless surface? can we apply the kinetic energy equation at...

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I have to imagine it sucks having having your house flooded/blown down every three or so years. Not to mention your loved ones possibly dying...

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I hope you are well.

I have been doing a lot of readings on the wavefunction and have a question I did not see asked anywhere else in these forums. I was wondering if someone could shed some light on this for me?

I know the wavefunction is in 3N coordinate space and could be used to...

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https://cdn.automationdirect.com/static/specs/78relays.pdf

781-1C-24A Relay is listed as having ##177 \Omega## Coil Resistance. I'm assuming that figure will give the Real Power dissipated by the coil (entire relay circuitry) for some current...

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Is this an example of such system...

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The narrator is a bit annoying but there is a lot of information in it.

]]>

=if(B4=50,100) if B4 is 50 then 100 is displayed but if B4 is not 50 then FALSE is displayed.

I do not want FALSE displayed. I want the cell to be empty.

How can I do this???

Sorry if this is the wrong place to ask this.]]>

Thank you.]]>

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Without going into excruciating detail essentially a plastic "tube" will be going into an oil well...

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Hi all

Anyone who can help me to get a research problems based on advanced nuclear physics please...

Thank you all]]>

Let ## x\geq 2 ##.

Then ## \sum_{n\leq x}\frac{\phi(n)}{n^{\alpha}}=\sum_{d\leq x}\frac{\mu(d)}{d^{\alpha}}\sum_{q\leq \frac{x}{d}}\frac{1}{q^{\alpha-1}} ##.

Observe that

\begin{align*}

&\sum_{n\leq x}\frac{\phi(n)}{\sqrt{n}}=\sum_{d\leq x}\frac{\mu(d)}{\sqrt{d}}\sum_{q\leq...

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I took the route of biological sciences and computer science. This area is out of my league at the moment I'm not sure the amount of time that would be required to get the material applicable to this...

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-- Peter Morgan, old thread meaning-of-wave-function-collapse

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In our music system, the fundamental frequencies of the different notes on a musical instrument such as the piano or the guitar are related to each other in such a way as to allow...

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My issue arises from the premise that I learned; Integrals and derivatives are based on steps of a fixed constant...

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I'm currently doing a school essay on the Magnus Effect, but I'm having a problem regarding a contradiction between my measurements and calculations.

The experiment consists of letting go of rolled A4 paper cylinders on top of a ramp set on a table so that when the cylinder rolls down...

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I do have a problem understanding transistor.

I know how these solve and work :

I know some basics like the voltage on Rb is Vbb - 0,7V. Or something like this.

I also Know that the maximal current in this transistor is "defined" by the resistor in the...

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Today I learned that you clean...

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I recently read the following article on BBC online: "Revealed: Huge gas flaring emissions never reported (https://www.bbc.co.uk/news/science-environment-62917498)". Can they not use the ‘waste’ gas from flaring to generate electricity? Is it not feasible or economically viable? Do...

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I calculated the final velocity of th block to be 4.2 m/s

Vf = Sqrt 2(g)(h) = sqrt...

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- In which courses or field work is general relativity taught as method and not philosophy?
- At which altitudes does the oblate Earth approximation matter? At stealth bomber altitudes? Somewhere between Earth and Moon (in perhaps inertial...

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When I'm trying to calculate the impulse of the object when it's hit by F=10N force in the smallest possible time, then should I write:

Another...

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On second thought I guess it is OK. While the observer would encounter more...

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At this point, I really miss our beloved Jim Hardy. Jim would have brainstormed with me, then he might have...

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Rovelli writes this in his book (Qunatum Gravity) about spin networks:

Given an oriented and ordered graph there is a finite disgrete group of maps that change its order or orientation and that can be obtained as a diffeomorphism.

A link is equipped the source and target functions. this...

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More generally, how could I find out how to do something like bookmark without posting a question?]]>

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##f'(x_0)## is defined as:

$$f'(x_0)=\lim_{h \rightarrow 0} \frac{f(x_0+h)-f(x_0)}{h}$$

or

$$f'(x_0)=\lim_{x \rightarrow x_0} \frac{f(x)-f(x_0)}{x-x_0}$$

I can imagine that as ##n \rightarrow \infty## the value of ##f(b_n)## and ##f(a_n)## will approach ##f(x_0)## so the value of...

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Does anyone here actually dislike fast food? I know it's not healthy, but it's sure darn good.

...The Mexican pizza is back at Taco Bell. I like certain items at Taco Bell, but this is not one of them. I...

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But I want to introduce and consider a slight and...

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Grant Sanderson reflects on this year's Summer of Math Exposition and announces the winners!]]>

I would like to understand the highlighted part. In my understanding, this function does not seem to have a hole! Having said this, i can state that ##x_0=1## and we have our defined ##f(x_0)=2##. It follows that,

##f(1^{+}) = e##

##f(1^{-}) = e##

thus...

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It has been said it is the internal energy and the volume it takes as in work (W) but why??? Why do we even need enthalpy what is the problem with delta U!

It is equal heat and...

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Hi! I have a background in college Mathematics. I wish to learn Physics with a goal of reaching high-level Quantum Physics understanding. It'll probably take a few years or so. I was hoping anyone...

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Software (or other mechanistic structures)...

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v

x = 80,000 km

v

0 = 100^2 + 2a(80,000)

160,000a = -10000

a = -0.0625 km/hr^2

This is off by 1,000,000 times from the textbook answer. Am I missing something with units or something or is the book wrong?]]>

]]>

The duty cycle represents the percentage of the time period that the signal is in the ON state ( which means that the voltage is at max value as compared to 0 V for...

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The first flight of the Space Launch System will launch...

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Code:

```
a=0.4
Select[ list, #[[2]] > a-0.025 && #[[2]] < a+0.025 & ]
{{401803.,0.42485,3.33299,0.776904,0.277985},{402066.,0.40333,9.23462,0.381478,0.397121},{402872.,0.41899,3.47237,0.742789,0.27385}}
```

But why doesn't this work? :-

Code:

`Select[ list, #[[2]] > b - 0.025 &&...`

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https://www.cnn.com/2022/09/28/sport/chess-how-to-cheating-explainer-spt-intl/index.html

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Like many here I watched Veritasium's awesome videos on this*. And like many I found myself having to drag my mind into understanding why it works.

The energy explanation makes the most sense to me. Derek explains that the fan is taking energy out of the existing wind - slowing it down -...

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