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physics, particle relationships

English: Shows slices of expansion of universe...
Shows slices of expansion of universe without an initial singularity (Photo credit: Wikipedia)

 

Was every event created at the moment of the big bang by the position of every particle at that moment? Every action is based on the action of the moment before and must obey the laws and forces of physics therefor suggesting every element, compound, and even human thought were predetermined by the exact position of particles/energy at the begining of time.

 

Asked  Paul Godwin (freshman Sac City College)

 

Majoring in physics?

Enabling Student-Student Interaction in a Larg...

Hi there, I have finally (at 22 and third year in college) decided what I want to major in–physics! I love it, so so so much! I especially want to be an astrophysicist. However, after hearing from a bunch of people, my professor included, astrophysicists don’t get paid much, and a lot of people want to do it. This really bummed me out, because that’s my true passion. However, I don’t want to major in it, spend 8 years in school, and then not find a job, or find a lower paying job. I have a daughter, and I don’t have room to take chances too much. I need to get stable for the both of us. I genuinely want a six figure salary, and I would love to be able to do research, my life goal is to make a major contribution to physics. However, I just don’t know what I can do with a physics degree that will get me paid a decent amount, while at the same time doing what I love. Any advice or suggestions?

Physics Books!

How was your AISSCE Class 12 Physics Exam 2013?

How was your AISSCE Class 12 Physics Exam 2013?

Many students reported that the questions were extra ordinarily tough. What was your experience?

Use the comment form below to tell us the problems you found in Physics question paper.
Chirag says:
“equipotential surfaces! question no. 29,

draw the equipotential surface for two dipoles. I drew the equipotential plane for the two dipoles! will I be awarded points for this?
Question Paper series: 2   Outside Delhi”

Alaap Says:
What problems did you find: It was pretty good.The question number 20 was something i din’t know.The last question on the graph of flux and emf versus (omega t) was direct but i messed it up. And the paper was quite lengthy.If i had the time i would not have panicked and would have been able to do the graphs. And the rest here and there one mark or half mark questions.So i was a bit worried but my sister told that i might get 60+/70.Hope that comes true! Scared! *Fingers Crossed*

How is the surface tension direction found out?

Can you, sir, explain point 44 of the attached image on surface tension.

Here’s the link in case attachment doesn’t work:
http://www.sakshieducation.com/EAMCET/QR/Physics/Jr%20Phy/12Surface%20tension%20_198-208_.pdf

How is the surface tension direction found out?
{i know it tangential but in which direction along the tangent?}
Also why is surface tension for Solid-Air Surface considered when balancing forces on liquid?

Surface-tension-12345

 

Asked Abhi

Answer: Surface tension acts tangential to the surface of a liquid. If we imagine a line on the free surface of a liquid, the force of surface tension acts perpendicular to this line and tangential to the surface.

At a solid liquid interface the forces of cohesion and adhesion come to play.

In the diagram, T does not necessarily represent Surface Tension. Please remember that surface tension is the property of a liquid at surface.

Here T2 and T3 stand for the force at the point of contact along the solid surface. Further discussions are welcomed.

 

We are not Psychic – It’s Physics Here!

We receive many questions daily where in questions based on dreams, love, relations etc. are asked.

Psychic CatWe thought initially that those were posted by spammers. But the emails and posts were not from spam-bots but genuine IPs and persons. On analysis, it was found that those posts were made by people who thought that the site name as “AskPsychics” and thus they asked such questions. Some even misspell Psychic as Physic.

When they don’t get their answers, they come back to the site and start looking at the answered questions to find that the site is all about Physics and that there are no Psychichs here!

Thanks to our principle that we do not allow questions to be published directly. All questions posted via the Ask a Question link reach the email inbox of the admin and editors of the site. we scrutinize the question and are posted to the site only if it is related to Physics or education.

Once again I would like to announce –

We are PHYSICS People

Not Psychics

Refraction through a prism

For an equilateral prism , find two angle of incidence differing by 20 degrees showing same deviation of 40 degrees?

Asked Atambir Singh

Answer:

Use the formula \delta =i_{1}+i_{2}-A

Here A = 60 degree (Since equilateral prism)

deviation is 40 degree

This gives A+\delta =i_{1}+i_{2}=100

Therefore,

the values of angles of incidence are 60 degree and 40 degree

 

Physics Honours as career

 

I want to pursue my career in Physics Honours . Can you please suggest me some good institutions ?

 

Asked Akshat Kanwar

 

DSC00352

 

 

 

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