Science & Mathematics - 2 November 2006

which theory is best supported by a doppler shift of spectral lines toward the red end of the spectrum? 1.creation of the solar system,2.expanding universe,3.nature of light energy,4.formation of impact craters

According to the big bang theory,the universe began as an explosion andit still expanding. this theory is supported by observations that the stellar spectra of distant galaxies show a 1.concentration in the yellow portion of the spectrum,2.concentration in the green portion of the spectrum,3.shift toward the blue end of the spectrum,4.shift toward the red end of the spectrum

a start of high surface temperture and low luminosity is most likely a 1.giant star,2.main sequence star,3.supergiant star,4.white dwarf star

why does a star with a high amount of matter tend to have a short life? 1.it rotates rapidly,2. it consumes it fuel rapidly,3.it has a core of heavy element,4.it collapses to form a white dwarf

2006-11-02 10:06:45 · 3 answers · asked by antloco34 1 in Astronomy & Space

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what is hard carbon?

2006-11-02 10:04:44 · 4 answers · asked by ringo 1 in Chemistry

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what are the chemical and physcial propeties of Nitrogen? can any one help!! please?!?

i went to two diff sites and theyr telling me something that it in both sections its so stupid. i know i may be looking at the wrong sites but none of the sites blandly explain each.................please if you can provide something.....do it without stupid remarks........thnx :)

2006-11-02 10:04:15 · 6 answers · asked by chris ;) 1 in Chemistry

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A ballistics/force question.?

This is a completely hypothetical question.. If a 400 lb flying beast was arcing towards a gunman, flying at a speed of 60 mph from a distance of 30 feet, would a slug from a .63 LeMat revolver that blew off its head change the trajectory of the flight?

2006-11-02 10:03:41 · 2 answers · asked by sincarnato 3 in Physics

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Answer this problem 7y+4(92-9)=87+67y(10+23)?

My math teach ask us this

2006-11-02 10:03:08 · 5 answers · asked by King James 2 in Mathematics

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when is hurricane season in the florida area?

2006-11-02 10:02:55 · 6 answers · asked by deanmofidi 2 in Weather

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What are some boxes that we need to think outside of?

Einstein thought outside the box of time and space...

Are there any other boxes left?

2006-11-02 10:01:07 · 10 answers · asked by Anonymous in Physics

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What volume of 0.105 M Na2S solution will exactly react with 25.0 mL of 0.140 M aGNO3 solution?

2 AGNO (aq) + NA S(aq) ---> Ag S(s) +2NaNO
............3 .............2 ................2 ................3

2006-11-02 10:01:02 · 2 answers · asked by ShanAnn B 1 in Chemistry

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what is the city,whose name comes from the French word "red stick,"that is the capital of Louisiana?

2006-11-02 09:58:58 · 7 answers · asked by blingbling_lili 1 in Geography

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how hot is the sun?

tell me

2006-11-02 09:57:18 · 15 answers · asked by Anonymous in Weather

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math help please?

how long does it take tom to drive 135 miles on I205 if he merges on to it at 10AM and drives non stop with the cruse control at 60MPH

i know it should be just over 2 hours but i cant seem to come up with an equasion to support it.

2006-11-02 09:56:41 · 7 answers · asked by Anonymous in Mathematics

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velocity and acceleration?

Need help, ive been working on this problem all day, please just help me!

A particle leaves its origin with a velocity of 4 i m/s and a constant acceleration of ( -2 i + .5 j ) m/s^2. At the time the particle reaches its maximum X coordinate (a) what is the velocity? (b) what is its position vector?

Please Help, Serious answers please!

2006-11-02 09:55:57 · 1 answers · asked by sur2124 4 in Physics

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Height of A building?

To find the height of building, you observe that a yard stick held vertically on the ground cast a shadow of 42 1/2". At the same time, the building cast a shadow which is measured at 57' - 7 3/4". How tall is the building?

2006-11-02 09:55:02 · 1 answers · asked by Levi M 1 in Physics

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how do different seasons affect a building structure?

2006-11-02 09:54:36 · 2 answers · asked by gtguy 1 in Weather

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where did fibonacci go to school?

2006-11-02 09:54:28 · 5 answers · asked by personater 2 in Mathematics

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What products are available for purchase that will protect a person from Electromagnetic Radiation?

2006-11-02 09:53:19 · 5 answers · asked by krymarbet 1 in Engineering

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how many miles equal 27km. and 6.4km.?

2006-11-02 09:50:47 · 5 answers · asked by pete 1 in Geography

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Hi do you know what United Nations do?

Hi, I need help. Do you know what United Nations, what does it do, How many countrys belong to it, How many countrys in the world, and when was United Nations set up i need help and big help please tell me, can you give me a site where all of theim tell that please please please pleasssssssssssssseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee Thankssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss xoxo

2006-11-02 09:50:30 · 4 answers · asked by Kit-Kat 1 in Geography

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