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April 18, 2014

Search: Science-Help-Universe/Stars

Number of results: 54,266

Science-Universe and Stars
what s the osc illating theory of universe? the oscilaating theory of the universe is the theory on the universe expanding. The gravitational pull of all the galaxies plus whatever the other matter existed in the universe would be great enough to slow down that expansion or ...
Monday, March 1, 2010 at 2:22pm by Sara

Science-Help-Universe/Stars
The oscilating theory is about the universe growing so big that as it does the force of all the galaxies and the other matter in the universe turn out immense enough to slow that expansion down or overturn it. Is this good?
Monday, March 1, 2010 at 5:14pm by Sara

Universe and the Stars-Please Check
IT is ok, but one thing is the color of the stars is telling: clusters consist of yellow, red stars, not the hot blue stars. That in itself indicates an older system.
Monday, March 1, 2010 at 7:42pm by bobpursley

Science-Help-Universe/Stars
yes, I would edit it somewhat like this ...in the universe eventually have gravitational forces which are immense enough to..
Monday, March 1, 2010 at 5:14pm by bobpursley

Science-Universe and Stars
Now i have to conpare the oscilating theory with the expanding universe theory. is the expanding universe theory referring to the big bang? I am sort of stumped on this, your help will be greatly appreciated, thanks
Monday, March 1, 2010 at 2:28pm by Sara

Universe and the Stars
what s the osc illating theory of universe? the oscilaating theory of the universe is the theory on the universe expanding. The gravitational pull of all the galaxies plus whatever the other matter existed in the universe would be great enough to slow down that expansion or ...
Monday, March 1, 2010 at 4:33pm by Sara

Science-Universe and Stars
both have a big bang. In the oscillating model, the universe collapses, and a new big bang starts it all again, over and over. The expanding universe is of three types: forever expanding; eventually slowing down; and collapasing. THe last collapsing leads to the oscillating ...
Monday, March 1, 2010 at 2:28pm by bobpursley

Science-Universe and Stars
thank you so much:-)
Monday, March 1, 2010 at 2:28pm by Sara

physics
suppose that there are 1.9*10^25 stars in the universe. how many moles of stars would this be?
Monday, April 22, 2013 at 1:56am by john

science
which of the following possibly outcomes regarding the universe do scientists think is most likely ? a) the universe will continue to expand b) the universe has completed its expansion c) the universe will start shrinking soon d) the universe is already shrinking
Friday, November 22, 2013 at 8:44am by victoria

Science-Repost-Universe&Stars
thank you so much:-)
Monday, March 1, 2010 at 1:02pm by Sara

science
which of the statements below is true? a) the stars in a galaxy are held together by gravity b) Stars in a galaxy slowly rotate around a center c) The Milky Way is the only galaxy in the universe d)All of the above just need to know if my answer is correct or wrong d
Monday, August 16, 2010 at 5:04pm by ant

Science-Universe and Stars
Was there a link that you were trying to post?
Monday, March 1, 2010 at 1:13pm by Sara

Universe and the Stars
In the oscillating theory of the universe, it is expanding at the present time (following the "Big Bang") but gravitational forces are so strong that the burned-out galaxies will eventually reverse and come back together in a "Big Crunch" that will reignite another expansion. ...
Monday, March 1, 2010 at 4:33pm by drwls

Science-Help-Universe/Stars
okay, I'll do that, and then I'll post it on here for you to check. Sorry for the confusion.
Monday, March 1, 2010 at 5:14pm by Sara

Universe and Stars
As u look at the stars that re beyond and farther away, what occurs to the angle measured at earth? at what point will this method no longer work? Someone please help explain
Thursday, March 4, 2010 at 7:20pm by Sara

science
Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me Universe For Me
Monday, January 19, 2009 at 7:43pm by Anonymous

Science
Y r the distances to the planets given in km, while the distances to stars & galaxies r given in light years? I am really stumped on this quest. I think because the universe is so huge that it would be way too dificult to measure distances to stars and galaxies in km. Your ...
Monday, February 22, 2010 at 7:29pm by Sara

Science
Y r the distances to the planets given in km, while the distances to stars & galaxies r given in light years? I am really stumped on this quest. I think because the universe is so huge that it would be way too dificult to measure distances to stars and galaxies in km. Your ...
Monday, February 22, 2010 at 9:21pm by Sara

Science-Universe and Stars
You might try here. The best thing to do when you don't understand the assignment is to ask the teacher. You will NOT be he only one won dering! Sra
Monday, March 1, 2010 at 1:13pm by SraJMcGin

Universe&Stars-Please Check
They are considered to be older because they have little instellar matter and because they rarely form new stars like the other galaxies do. They seem to be more evolved than the spiral galaxies because they actually are thought to form within the clusters. The spiral galaxies...
Monday, March 1, 2010 at 1:08pm by Sara

Universe and Stars
I am not quite sure what you are asking, but it seems to be related to the "parallax" method of measuring star distances. As the earth moves around the sun, we look at stars from different angles, and the "nearby" stars appear to move back and forth by a very small angle ...
Thursday, March 4, 2010 at 7:20pm by drwls

Science-Help-Universe/Stars
Can someone please check my previous science posts. I think that I only had one which no one responded to. It is latest one, and I posted it 2 times, thanks in advance :-)
Monday, March 1, 2010 at 5:14pm by Sara

Science-Help-Universe/Stars
thank you bobpursley:-) Do you have any idea of what a concept map is? I have to do one for the milky way.
Monday, March 1, 2010 at 5:14pm by Sara

science
Geocentric" means that the earth is the center of the unvierse, including the sun, the moon, the planets, and all the stars. Is the universe geocentric? yes no yes
Monday, August 16, 2010 at 1:05pm by carl

Cosmology
Which of these is NOT a good estimate of the age of the universe? * Decay times of 238U and 232Th in metal-poor stars. * Isochrone fits for globular clusters. * Ages of the faintest white dwarfs. * Ages of the hottest main-sequence stars in distant galaxies.
Wednesday, January 16, 2013 at 12:14am by qwerty

Universe and the Stars
thank you drwls, I appreciate your input :-)
Monday, March 1, 2010 at 4:33pm by Sara

Universe and Stars
thank you drwls,Yes, I was referring to Parallax, :-):);)
Thursday, March 4, 2010 at 7:20pm by Sara

science
how early south africans incorporated the stars into their world, explaining how they used the stars to mark seasons and events and retelling some legends and stories linked with specific stars and constellations
Sunday, August 30, 2009 at 6:45am by navi

Science-Help-Universe/Stars
Sara, I am not inclined to rewrite that for you so you can "understand it clearly". How do I know what you can understand clearly? Why don't you rephrase it in words which you think it means, and I can check that to see if it is accurate.
Monday, March 1, 2010 at 5:14pm by bobpursley

Science-Repost-Universe&Stars
Give 2 reasons y elliptical galaxies are considered to be older & more evolved than spiral galaxies. They are considered to be older because they have little instellar matter and because they rarely form new stars like the other galaxies do. They seem to be more evolved than ...
Monday, March 1, 2010 at 1:08pm by Sara

science
I agree -- it should be a heliocentric universe if the sun is the center. However, since the question states it's a geocentric universe and "sun" is the answer, I assume that our sun is considered the center of any earth-related universe.
Monday, August 16, 2010 at 4:46pm by Ms. Sue

science (universe)
describe the big bang theory about the origin of the universe.
Monday, June 27, 2011 at 8:11am by jason

science
The cooling of the universe, the expanding universe, and the matter forms we detect in the oldest areas.
Tuesday, September 18, 2007 at 6:16pm by bobpursley

Physical science
How early did s.a incorporated the stars into their world explaing how they used stars to mark seasons and events events and retelling some legends and some stories linked with specific stars and constellations
Sunday, April 10, 2011 at 12:35pm by Popularity

Science 5
What are the characteristics of globular cluster stars? A.no stars as hot as our Sun B.old age and hundreds of thousands to millions of member stars C.no main sequence stars left, with billions of member stars D.a few hundred stars, most still on the main sequence E.hundreds ...
Tuesday, November 7, 2006 at 9:19pm by Liz

Universe and the Stars-Please Check
Give 2 reasons y elliptical galaxies are considered to be older & more evolved than spiral galaxies. They are considered to be older because they have little instellar matter and because they rarely form new stars like the other galaxies do. They seem to be more evolved than ...
Monday, March 1, 2010 at 7:42pm by Sara

Science
Do I have these correct according to the H-R Diagram? Hot (blue stars) are on the left side of the modern H-R diagram bright stars are the top of modern H-R diagram cool (red) stars are the ride side side of modern H-R diagram dim stars are the bottom of modern H-R diagram
Tuesday, October 14, 2008 at 8:32pm by Tyler

Science
As they age, _________ stars move up and to the right on an H-R diagram? Is it the bright stars?
Tuesday, October 14, 2008 at 8:35pm by Tyler

Cosmology
A curvature constant of k=0, as used in the Friedmann equation, means: * The universe is open * The universe is matter-dominated * There is no dark energy * The universe is flat
Wednesday, January 16, 2013 at 12:28am by qwerty

Science - History
Why do you think church authorities forced Galileo to deny his ideas on the universe? To point out, Galileo was the first guy who believed that the universe was heliocentric, and when he tried to convince others, he was tortured, so he took back his words and his theory and ...
Tuesday, May 26, 2009 at 9:49am by Kiska

Cosmology
There isn't enough starlight in the universe, as strange as that sounds. But redshift does dim stars that are moving away from us at near-c speeds.
Tuesday, January 8, 2013 at 8:18pm by Ryan

science
why are stars shaped in a star form All stars are spheres. Their own gravity forces then to take that shape
Monday, October 23, 2006 at 8:19pm by nicole

science
if you believe that the universe is geocentric, you would believe that the is the center of the universe. sun or heliocentric
Monday, August 16, 2010 at 4:46pm by ant

science
Can CMB radiation show that the Universe was accelerating at the time the CMB formed thus messuring dark energy early in the universe?
Monday, October 7, 2013 at 11:46am by Mia

Science-Universe and Stars
It says that I have to develop a concept map about the milky way. What is that? Is it like a web or something? It says that I have to develop it to understand the milky way's structure and composition.
Monday, March 1, 2010 at 1:13pm by Sara

science
Is this the way the question looks? If you believe that the universe is geocentric, you would believe that the ________________ is the center of the universe. What do you think goes in the blank?
Monday, August 16, 2010 at 4:46pm by Ms. Sue

Cosmology
The solution of Olbers' Paradox is: - The universe is opaque at large scales - The universe expands - There is simply not enough starlight in the universe - Matter is clustered in such a way that the integral brightness converges
Tuesday, January 8, 2013 at 8:18pm by qwerty

physics
in what specific way does light from distant stars and galaxies tell astronomers that atoms throughout the universe have the same properties as those on earth?
Wednesday, July 27, 2011 at 1:11am by Anonymous

science
What makes the subject of star formation so difficult and complex A It is so slow that no visible proof of of it exists B Star formation is too expensive to study in detail C Stars live too long to be observed from birth to death D Clouds, fragments, protostars, stars, and ...
Thursday, February 8, 2007 at 8:02am by bolometric

Science
Describe how the rotation of Earth is responsible for the movement of the stars. The rotation of earth is responsible for the movement of stars because as it rotates, objects around it rotate as well, such as planets, they appear to move through the stars because they are that...
Friday, February 5, 2010 at 8:54pm by Sara

Science-Repost
Describe how the rotation of Earth is responsible for the movement of the stars. The rotation of earth is responsible for the movement of stars because as it rotates, objects around it rotate as well, such as planets, they appear to move through the stars because they are that...
Saturday, February 6, 2010 at 3:13pm by Sara

Earth Science
True or false? ------------------------- Although there is scientific evidence and many scientific theories about the origin of the universe, how it all happened remains a question. Which statement is true? ------------------------- The perfect cosmological principle is the ...
Tuesday, January 17, 2012 at 12:06pm by Nick

Science-Repost-Universe&Stars
What does it mean by the Local Group of galaxies? The Local Group of galaxies are a group of around 2 dozen galaxies. It is the group to which our galaxy belongs. All the galaxies are clustered together in this group. They are all very near eachother.
Monday, March 1, 2010 at 1:02pm by Sara

Science
So is this right? PS I tried putting some of it in my own words. The Big Bang Theory occurred 14 billion years ago from a singularity (a single point, smaller than a pinhead with infinite temperature and density). It is believed that everything (time, matter, space, stars etc...
Saturday, February 5, 2011 at 6:47pm by Shivi

science
Most stars we see are on the main sequence. Stars spend most of their lives consuming their initial stock of hydrogen. Is there a connection between these two statements? If so, what is it?
Monday, March 26, 2012 at 12:34pm by long

Science-Repost-Universe&Stars
You have already answered your own question. The Local Group of galaxies are not very close, but close enough to be gravitationally held together in a group. The biggest galaxies in the Local Group are ours (The Milky Way)and the Andromeda Galaxy (M31). They are being pulled ...
Monday, March 1, 2010 at 1:02pm by drwls

Science
The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance the galaxy is away from us. This relation, v=Hd is known as Hubble's law and the constant H is known as Hubble's constant. The evolution of our ...
Monday, May 20, 2013 at 1:17am by Abhishek Ranjan

Physical Science
How can we talk about the evolution of stars over billions of years when human beings have been observing stars for only a few thousand years?
Monday, December 2, 2013 at 12:44pm by Harold

space
How early south africans incorporated the stars into their world,explaining how they used the stars to mark seasons and events and retelling some legends and stories linked with specific stars and constellations
Sunday, September 6, 2009 at 4:58pm by Anonymous

Science
Dont the stars you see depend on where you are on Earth? After all, you can't see stars during the daylight, nor see them below the horizon.
Monday, February 22, 2010 at 7:23pm by bobpursley

Science
Drew spends one weekend each month at his grandparents farm.He enjoys loking at the stars in the night sky with his grandfathers tetscope. Drew is a careful observer of the stars and he notices that the stars in the night sky are in a different location in the sky each time he...
Wednesday, April 18, 2007 at 5:07pm by Hot stuff

science
Some theoriests say that in the inflationary period, the scale of the universe increased by a factore of 1050. Suppose your height were to increase by a factore of 1050. How tall would you be? Express your answer in light-years and compare it to the size of the observable ...
Monday, March 26, 2012 at 5:01pm by long

science
Some theoriests say that in the inflationary period, the scale of the universe increased by a factore of 1050. Suppose your height were to increase by a factore of 1050. How tall would you be? Express your answer in light-years and compare it to the size of the observable ...
Monday, March 26, 2012 at 5:01pm by prada

Science
Most of those 10^22 stars are to far away to be seen. Ou eyes only admit light through pupils with a m illimeters diamater. The human retina is also not very sensitive. Absorption of the light from distant stars (near the center of the galaxy) buy interstellar dust is also ...
Monday, February 22, 2010 at 9:23pm by drwls

science
Please forgive me, I don't mean to be impertinent, but this is bothering me. A geocentric universe has the EARTH at its center NOT the sun. If the sun were the center, it would be called a heliocentric universe, not a geocentric one. Could I have misunderstood the question?
Monday, August 16, 2010 at 4:46pm by E.G.

science
About eighty of the naturally occuring elements are solids at room temperature, in the pure state. Two are liquids. Nine are gases. This does not include chemical compounds. Most elements are found in nature (on Earth) combined with other elements. The six inert gas elements ...
Friday, May 14, 2010 at 10:42pm by drwls

Theories in Science
Why are theories "not proven"? Typically because they involve observations that are beyond our limits. Speculating about the universe is theory because of the size of the universe. Similarly, wetheorize about sub-atomic particles because we can't see what exactly is taking ...
Thursday, September 14, 2006 at 8:48pm by Amanda

science
if two stars are otherwise identical, the brightness is affect by distance. But a near faint star will not appear as bright as a distant bright star. Some stars just shine more intensely than others.
Tuesday, October 2, 2012 at 2:47pm by Steve

science
k .. how are elements formed in stars? i have exam tomorrow ..and i need th annswer!!! THANKS The gas from which they formed had been seeded with the heavy elements formed from previous giant stars. Nucleosynthesis--wikipedia
Sunday, December 10, 2006 at 11:38am by alisa

Science need help
Astronomers believe that the biggest stars in the Galaxy may be a hundred times more massive than the Sun, but are a million times brighter. Would you expect such stars to have longer, shorter or comparable lifetimes to that of the Sun?
Friday, December 21, 2012 at 4:59am by zak

Science this is very important and urgent
The largest "objects" in galaxies are stars or collections of stars called clusters. A large number of star clusters called "globular clusters" are located just outside the galaxy, as well as inside it. Half or more of the stars probably have planets. There are also gaseous ...
Monday, May 4, 2009 at 11:06pm by Samaritan

Science: Astronomy
Why can't we use solar type stars as spiral tracers? What type of stars make good spiral tracers? Why? What characteristics do they have to perform this function?
Thursday, July 15, 2010 at 6:30pm by Katrell

Cosmology
How do we explore the large-scale structure of the Universe in the modern day? - Using large spectroscopic redshift surveys. - By accurately measuring positions of nearby galaxies. - By observing galaxies in the Local Supercluster. - By studying clusters of stars in the Milky Way
Tuesday, January 8, 2013 at 8:10pm by qwerty

Physics
Three identical stars of mass M form an equilateral triangle that rotates around the triangle's center as the stars move in a common circle about that center. The triangle has edge length L. What is the speed of the stars?
Tuesday, January 11, 2011 at 9:06pm by Monique

astronomy
Most stars become white dwarfs that will continue to cool down and emit less light. Only the most massive stars become neutron stars. They are a small minority. They have a mass more than 1.4 times that of our sun. If I remember correctly, stars that become neutron stars lose ...
Saturday, November 28, 2009 at 6:28pm by drwls

physics
A star of mass 2.0 1031 kg that is 4.8 1020 m from the center of a galaxy revolves around that center once every 4.2 108 years. Assuming that this star is essentially at the edge of the galaxy, each of the stars in the galaxy has a mass equal to that of this star, and the ...
Friday, July 16, 2010 at 7:26pm by Sam

physics
Three identical stars of mass M = 6.4 x 1030 kg form an equilateral triangle that rotates around the triangle's center as the stars move in a common circle about that center. The triangle has edge length L = 5.0 x 1010 m. What is the speed of the stars?
Monday, March 28, 2011 at 1:39pm by jr

thermodynamics
Which of these statements are in accord with the three laws of thermodynamics? -A-The entropy of the universe never decreases -B-A nonspontaneous process can occur if it is coupled to a process which is sufficiently spontaneous -C-The temperature of the universe stays the same...
Sunday, April 29, 2007 at 4:34pm by anonymous

science
On a clear night, Ram correctly identified some clouds among the stars as the Milky Way. What part of the Milky Way was MOST visible to Ram? a]asteroids b]dust c]planets d]stars I think it is ethier b or d. Please help. Appreciative. ;]
Wednesday, March 27, 2013 at 5:28pm by Izzy

Science
Have I matched the right Scientists with these famous sayings: Scientists: Ptolemy, Kepler, Copernicus, Newton, Galileo, Brahe & Hubble. 1)"I've finally worked out an explanation as to why planets orbit the sun and moons orbit planets. It is gravity that keeps an object in ...
Thursday, September 4, 2008 at 7:14pm by Tyler

Science !
What is being measured? Those numbers are too large to be doppler wavelength shifts of stars. Besides, dopper shifts measure speed in one direction only (the line of sight). Stars do not have single wavelengths. That may have a number of shifted spectral lines (emission or ...
Tuesday, March 3, 2009 at 11:41pm by drwls

Science Question
How might the most common occurring stars be described, based on our stellar neighborhood? A. White Dwarfs B. K giants C. A main sequence D. M main sequence The most common stars are Red Dwarfs. I dont like the answer choices. Most of them are M type stars. To heat up one kg ...
Tuesday, September 19, 2006 at 10:26pm by Liz

physics
mc030-1.jpg Two stars are bound together by gravity. The larger star has four times the mass of the smaller star. Which diagram best illustrates the orbital motion of the two stars? (Note: the stars are shown much larger than they really are compared to the
Sunday, April 7, 2013 at 3:13pm by carmen

Science
Visible matter is a small fraction of the total mass-energy in the universe, Detectable electromagnetic (including microwave) radiation has more energy than visible matter. Greater still is what is believed to be "dark" mater and "exotic" energy that cannot currently be ...
Monday, February 16, 2009 at 12:36am by drwls

Philosophy
Leibniz presents monads as simple substances. Monads are infinite in number, unextended, and windowless, and each mirrors the universe. As a consequence, Leibniz contends that the universe manifests both order and perfection. Why does Leibniz give monads these characteristics...
Monday, February 4, 2008 at 11:27pm by Joe

physics
The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance the galaxy is away from us. This relation, v=Hd is known as Hubble's law and the constant H is known as Hubble's constant. The evolution of our ...
Thursday, May 23, 2013 at 2:54am by hrdcvrdcv

Physics
Two stars are 8 light years from earth (a light year is the distance light travels in one year). The 550 nm light from the two stars can be barely distinguished in the diffraction pattern of 90 cm wide single slit. How far apart are the stars?
Wednesday, May 2, 2012 at 8:24pm by jackmo

science
what eventually happens to medium mass stars? i know small stars don't die out as quickly as more massive ones, but i'm having a hard time figuring out what happens to the medium mass ones. thank you.
Wednesday, February 18, 2009 at 8:07pm by vanessa

astronomy
Can CMB show that the universe was accelerating at the time the CMB formed thus measuring dark energy early in the universe?
Monday, October 7, 2013 at 12:24pm by Bella

astronomy
Can CMB show that the universe was accelerating at the time the CMB formed thus measuring dark energy early in the universe?
Monday, October 7, 2013 at 12:38pm by Bella

science
Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other my answer is c
Friday, April 4, 2014 at 6:44pm by steve

physical science
Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other my answer is c
Friday, April 4, 2014 at 8:29pm by steve

Science
A black hole is a body of matter that is so dense that its gravitational attraction will not let light or anything else escape. Matter that gets sucked inside it disappears from the universe forever, but adds to the mass of the black hole. Black holes are sometimes formed when...
Sunday, December 28, 2008 at 9:45pm by drwls

Science 4
Most stars probably formed A.alone B.in intergalactic space, then were swept up into the Galaxy C.in clusters in the Galaxy's spiral arms D.from planetary nebulae E.in the galactic Nucleus, then migrated outward later I'd guess roughly C ...but im no scientist. check this out ...
Tuesday, November 7, 2006 at 9:19pm by Liz

science
what is the entire pysical universe
Monday, April 4, 2011 at 6:27pm by jannette

science
When was the origin of the universe?
Tuesday, December 13, 2011 at 12:07am by penny lane

3 grade English
Your son is doing very well! :-) In the sentence about the galaxy, he didn't use an action verb. An action verb to use with galaxy could be "has." Our galaxy has many stars. For the last one -- Stars reflect light from the sun. The light from stars travel a long way.
Friday, January 20, 2012 at 5:51pm by Ms. Sue

Corporate Tax
Alan just immigrated to Canada and owns STARS ltd (US company). Alan owned 100% of shares to STARS ltd. STARS ltd. was incorporated in the US in 2004. Alan wanted to know if he should use STARS ltd or a new company to carry on his business in Canada? He's also not sure whether...
Sunday, May 18, 2008 at 3:47pm by Rachel

Science 3
There are a lot more M2V stars than M2Ib stars. True False http://en.wikipedia.org/wiki/Stellar_classification
Tuesday, November 21, 2006 at 5:08pm by Liz

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