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| bio | website | inpursuitoflaziness.blogspot.… |
|---|---|---|
| location | Mumbai, India | |
| age | 19 | |
| visits | member for | 1 year, 3 months |
| seen | 15 mins ago | |
| stats | profile views | 2,174 |
I am an engineering student who loves the sciences, especially physics.
Help this interesting site proposal for Space Exploration reach beta!
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10h |
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How do we know that time and distance are not discrete? @Siva: I know, but I recall that some theories assert that space/time becomes meaningless below the planck scale. |
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11h |
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How do we know that time and distance are not discrete? Aren't the Planck lengths/time more or less an implementation of discrete space/time? Not exactly, but close enough? |
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12h |
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Is it possable to create a magnitive field genarator, over the magnitive field This question makes little to no sense, and there doesn't seem to be any physics involved. |
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16h |
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Physics of every-day life: rotating bag of tea @Erik: Well, depends, because water way rise up the bag and into the thread. (Plus the steam may be hot enough to loosen the thread). But the general idea is correct :) |
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23h |
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Why isn't data lost when sent over large distances? Such answers always amaze me with the depth a seemingly simple question can be answered with :D |
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1d |
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How can I determine whether the mass of an object is evenly distributed? @Mike: Ah, I see what you mean... Silly me :P |
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1d |
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How can I determine whether the mass of an object is evenly distributed? @Mike: I don't see the connection... Calculate it for yourself :) |
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1d |
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How can I determine whether the mass of an object is evenly distributed? Well, the gravitational effects of the malicious counter example are different :) |
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1d |
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How can I determine whether the mass of an object is evenly distributed? Basically, even if you embed, some other externally visibly parameter will change. We need two externally equivalent objects, where only one has uniform distribution. |
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1d |
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How can I determine whether the mass of an object is evenly distributed? @BenCrowell: Yes, except that now you will end up adding more mass to one box since the object embedded in it is smaller. |
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1d |
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How can I determine whether the mass of an object is evenly distributed? The outer shells won't have the same mass and I; one will have to be thicker than the other. |
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1d |
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How can I determine whether the mass of an object is evenly distributed? @BenCrowell: I didn't assert that I is different. I'm saying that the smaller sphere isn't a counterexample because the question is "can we have two objects of equal size/mass and I but only one is uniform?". And the OP isn't putting things in boxes (which adds nonuniformity), he is just asking if one can determine the uniformity of a given object. Two boxes containing objects are obviously nonuniform. |
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1d |
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How can I determine whether the mass of an object is evenly distributed? @BenCrowell: Well, in the counterexample the size is different, so it's obvious that the moment of inertia is different. You seem to have gone in the wrong direction -- you have given an object of a different size and distribution with the same I. What we want is two objects that look the same externally and have the same I, but have different distributions of mass. |
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1d |
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Why can Hiroshima be inhabited when Chernobyl cannot? Note: If you wish to continue this discussion, please do so in Physics Chat :) |
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1d |
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Does a charged or rotating black hole change the genus of spacetime? @JohnRennie: The center cannot hold it is too late! |
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1d |
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Why doesn't light kill me? @jk.: thanks, added :) |
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1d |
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Find the workdone to increase the temperature of an ideal gas by 300c if gas is expanding under Please see our homework policy. We expect homework and homework-like problems to have some effort put into them, and deal with conceptual issues. If you edit your question to explain (1) What you have tried, (2) the concept you have trouble with, and (3) your level of understanding, I'll be happy to reopen this. (Flag this message for ♦ attention with a custom message, or reply to me in the comments with @Manishearth to notify me) |
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1d |
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If An Object Explodes With A Force, What Force Are Fragments Given? @RBowen: It could be anything you want. Remember, the acceleration is only for a very small moment, so what is more important is the final velocities. Make sure you conserve momentum and energy when deciding the velocities. |
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1d |
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If An Object Explodes With A Force, What Force Are Fragments Given? @RBowen: highly dependent on the mechanics of the explosion. We usually assume that the acceleration is near-infinite and occurs only for a very short period of time. (See: en.wikipedia.org/wiki/Impulse_(physics) ) |
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2d |
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Comparing Static Frictions let us continue this discussion in chat |
