Search found 13 matches
- Wed May 25, 2011 3:15 pm
- Forum: Physics
- Topic: A few questions on newtons law and black hole
- Replies: 20
- Views: 11830
Re: A few questions on newtons law and black hole
this seems really interesting, from studying my physics books i found the analogy between the formula for grav force and electric force that is directly prop to product of the constituents and inversely prop to the square of the dist. is this analogy applicable for the other two fundamental forces a...
- Sun Feb 27, 2011 8:43 pm
- Forum: Physics
- Topic: question regarding gravitaion
- Replies: 3
- Views: 2977
question regarding gravitaion
say a satellite is moving in elliptical path instead of circular around the earth. will the astronaut present inside it feel weightless when the satellite is at the ends of the major axis? prove your claim.
- Sun Feb 20, 2011 4:23 pm
- Forum: Physics
- Topic: 4th Dimension
- Replies: 10
- Views: 7287
Re: 4th Dimension
you're welcome
- Sun Feb 20, 2011 4:07 pm
- Forum: Astronomy & Astrophysics
- Topic: Your opinion
- Replies: 16
- Views: 18838
Re: Your opinion
its okay bro no worries, we all start by asking meaningless questions, and that's how we start learning science :) well about the idea of Rho Critical, its actually not a theory but its a constant term, for example $G=6.675X10^{-11} Nm^2kg^{-2}$ now you might ask how we derive this value? if you kno...
- Fri Feb 18, 2011 11:22 am
- Forum: Physics
- Topic: A few questions on newtons law and black hole
- Replies: 20
- Views: 11830
Re: A few questions on newtons law and black hole
thankss for the info bhaiya!
i had one general question, can you explain to me one of the basic principles of relativity? that speed of light is independent of frame of reference?
i had one general question, can you explain to me one of the basic principles of relativity? that speed of light is independent of frame of reference?
- Thu Feb 17, 2011 11:24 pm
- Forum: Social Lounge
- Topic: Mathematical Jokes
- Replies: 15
- Views: 12244
Re: Mathematical Jokes
bhaiya what does that thing mean which is always posted at the end of BDMO papers?
"TOMAR JIBONER 2ND DIFFERENTIAL NEGATIVE HOUK" ? :S
"TOMAR JIBONER 2ND DIFFERENTIAL NEGATIVE HOUK" ? :S
- Thu Feb 17, 2011 11:15 pm
- Forum: Astronomy & Astrophysics
- Topic: Your opinion
- Replies: 16
- Views: 18838
Re: Your opinion
i think who ever posted this, has a bit of misconception about the shape of universe, the shape of universe depends on a constant called "Rho Critical" that is the density of the universe, based on current research, there are only 3 possible options: 1. Flat Universe 2. Spherical Universe 3. Saddle ...
- Thu Feb 17, 2011 11:11 pm
- Forum: Astronomy & Astrophysics
- Topic: গ্রহ নক্ষএ
- Replies: 25
- Views: 33221
Re: গ্রহ নক্ষএ
the idea about "failed star" actually its said so because jupiter is not so heavy compared the amount of mass needed to form a "Star". and the 2nd characteristics of a star is u might say, it should emit "light", the idea is that jupiter DOES emit light but its in infrared and so what we understand ...
- Thu Feb 17, 2011 11:04 pm
- Forum: Physics
- Topic: A few questions on newtons law and black hole
- Replies: 20
- Views: 11830
A few questions on newtons law and black hole
1. We know from Newton's 1st Law that every body tends to continue its state of inertia unless acted by an external force. Now we know that when Big Bang took place, before that the whole universe was concentrated in a singularity. and since "everything" was inside this singularity and there couldn'...
- Thu Feb 17, 2011 10:50 pm
- Forum: Physics
- Topic: Is it possible to keep the sun always right above the head?
- Replies: 4
- Views: 3311
Re: Is it possible to keep the sun always right above the he
if you want to find out with absolute accuracy, then you also have to consider the yearly anomaly and the precession of equinox because due to effect of this, earth's tilt is changed by very small angle every year!