Anyone a Master of Physics?

Ramned

The Rams

Posers and Puzzles

18 Sep 07 19:56

coquette

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Omaha, Nebraska, USA

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19 Oct 07 04:20

Originally posted by HolyT
"Detecting" is just given in this question to indicate that you are somehow aware that there would be a wave front propogating ahead of the other ship. It could be by pre-arrangement with the other ship; it doesn't really matter.

The rocket and light example is not possible in the same way as the boat and wake example. Relative to you (in the trailing roc ...[text shortened]... hip is traveling at something less than the speed of light. Still, you'll never catch up.

Isn't this the same as my answer but with a lot more words to say it?

TheMaster37

Kupikupopo!

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19 Oct 07 06:14

Originally posted by AThousandYoung
No.

I agree.

HolyT

San Diego

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19 Oct 07 14:38

Originally posted by coquette
Isn't this the same as my answer but with a lot more words to say it?

No, because the shorter answer had no discussion about why the situations are different. There was no discussion about the principles of relativity that apply to the situation at hand (speed of light the same to any observer) but not to the boat scenario. And the "detecting" issue, which was the only portion that the shorter answer addressed, was not the meat of the question; it was just a matter of setting up the scenario.

mrjonesvich321

Richmond Hill

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19 Oct 07 23:19

1 edit

Is this a school assignment that you're having everyone here help you with? I've got a chemistry assignment to do on nuclear physics if anyone is interested?

coquette

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20 Oct 07 04:42

A chemistry assignment on nuclear physics? You are mixing your metamorphoses.

AThousandYoung

Blondes aren't white

tinyurl.com/34fnkz3h

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20 Oct 07 20:18

Originally posted by coquette
A chemistry assignment on nuclear physics? You are mixing your metamorphoses.

It must be a nuclear chemistry class. They do exist.

coquette

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20 Oct 07 21:33

maybe, but a nuclear chemistry physics class?

Ramned

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20 Oct 07 22:04

1 edit

Originally posted by coquette
you can't "detect" a wave of light in front of you that is moving away from you . . .because . . . it is moving at the speed of light away from you.

yes correct. will post one later on. bit busy now.

mrjonesvich321

Richmond Hill

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21 Oct 07 00:52

Originally posted by coquette
A chemistry assignment on nuclear physics? You are mixing your metamorphoses.

whoopsies, was thinking physics. It's nuclear chemistry.

aren't I the foolish one

wolfgang59

Quiz Master

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21 Oct 07 10:55

'nuclear chemistry' ?????? How can there be any chemistry at the nuclear level 😕

coquette

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21 Oct 07 20:32

There's lots of chemistry at the nuclear level. specific mass, different isotopes, electrophoresis and other membrane migrations, rates of reactions, disintigrations into new elements.

wolfgang59

Quiz Master

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21 Oct 07 20:45

No. You are wrong there is no chemistry at nuclear level cos there aint any chemicals! Its physics.

coquette

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21 Oct 07 21:51

ok, well thanks for that information. no chemicals at the nuclear level. got it.

PBE6

Bananarama

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22 Oct 07 14:40

Originally posted by wolfgang59
'nuclear chemistry' ?????? How can there be any chemistry at the nuclear level 😕

It's the study of the impact of nuclear processes on chemistry. Geez... 😞

http://en.wikipedia.org/wiki/Nuclear_chemistry

Gary Thomas

Nixa, MO USA

Joined: 04 May 07
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22 Oct 07 15:22

Originally posted by Ramned
[b]13. An object is hung on a spring, and the frequency of oscilation of the system, f, is measured. The object, a second identical object, and the spring are carried to space in the Space Shuttle. The two objects are attached to the ends of the spring, and the system is taken into space on a space walk. The spring is extended, and the system is released to o ...[text shortened]... e frequency of oscillation for this system, in terms of f?

There's the question again.[/b]

OK< I'm only on page 8 so I'm gonna take a guess before looking in the back of the book! I'm gonna say the frequency is exactly the same! My reasoning is that this question is the same as the one where you have a car smash into a concrete abuttment, or TWO cars hit each other while weighing the same and traveling in opposite directions at exactly the same speed as in the 1st experiment. The result is identical! NOW I'll peek and see if I'm right!