Friday
July 25, 2014

Search: Science-Help-Universe/Stars

Number of results: 24,595

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 ...
March 1, 2010 by Sara

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
March 1, 2010 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 ...
March 1, 2010 by Sara

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
November 22, 2013 by victoria

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
August 16, 2010 by ant

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

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 ...
February 22, 2010 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 ...
February 22, 2010 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
March 4, 2010 by Sara

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 :-)
March 1, 2010 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
August 16, 2010 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.
January 16, 2013 by qwerty

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
August 30, 2009 by navi

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 ...
March 1, 2010 by Sara

science (universe)
describe the big bang theory about the origin of the universe.
June 27, 2011 by jason

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 ...
November 7, 2006 by Liz

science
An H-R diagram? Answer Are Is a map of the position of the stars Graphs stars according to their size and distance List every known star Graphs a sample of stars according to surface temperature and absolute brightness Thank You
April 14, 2014 by snow

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
April 10, 2011 by Popularity

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 ...
March 1, 2010 by Sara

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 ...
May 26, 2009 by Kiska

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
January 16, 2013 by qwerty

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
October 14, 2008 by Tyler

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

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

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

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
January 8, 2013 by qwerty

science
if you believe that the universe is geocentric, you would believe that the is the center of the universe. sun or heliocentric
August 16, 2010 by ant

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?
July 27, 2011 by Anonymous

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.
March 1, 2010 by Sara

maTH
I NEED HELP REALLY BAD 5. Directions: Select all the correct answers. Nancy is studying constellations in science class. Two things are strongly supported by all random samples of the number of stars in a constellation. Most constellations have from three to seven stars in ...
May 8, 2014 by Babatunde

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 ...
February 8, 2007 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...
February 5, 2010 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...
February 6, 2010 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 ...
January 17, 2012 by Nick

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 ...
May 20, 2013 by Abhishek Ranjan

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.
March 1, 2010 by Sara

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?
March 26, 2012 by long

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?
December 2, 2013 by Harold

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...
April 18, 2007 by Hot stuff

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
September 6, 2009 by Anonymous

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 ...
March 26, 2012 by long

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 ...
September 14, 2006 by Amanda

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?
December 21, 2012 by zak

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
December 10, 2006 by alisa

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
January 8, 2013 by qwerty

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?
July 15, 2010 by Katrell

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...
April 29, 2007 by anonymous

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?
January 11, 2011 by Monique

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 ...
July 16, 2010 by Sam

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. ;]
March 27, 2013 by Izzy

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?
March 28, 2011 by jr

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 ...
September 19, 2006 by Liz

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 ...
September 4, 2008 by Tyler

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 ...
May 23, 2013 by hrdcvrdcv

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...
February 4, 2008 by Joe

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
April 7, 2013 by carmen

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?
May 2, 2012 by jackmo

science
When was the origin of the universe?
December 13, 2011 by penny lane

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 ...
November 7, 2006 by Liz

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.
February 18, 2009 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?
October 7, 2013 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?
October 7, 2013 by Bella

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

science
what is the entire pysical universe
April 4, 2011 by jannette

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...
May 18, 2008 by Rachel

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
April 4, 2014 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
April 4, 2014 by steve

science
what is the entire physical universe called?
August 31, 2009 by Anonymous

science
What is name of entire physical universe?
May 5, 2010 by bryce

Science
1. How did life begin? 2. Are we alone in the universe?
December 15, 2013 by Catheline-Anne Marie

Ecology
Menge and colleagues performed experiments in which they exposed some populations of mussels to sea stars and excluded sea stars from other mussel populations. Suppose that the sea star population consists of 20 individuals and the two populations of mussels are of the same ...
April 11, 2010 by Hannah

Biology
Menge and colleagues performed experiments in which they exposed some populations of mussels to sea stars and excluded sea stars from other mussel populations. Suppose that the sea star population consists of 20 individuals and the two populations of mussels are of the same ...
April 13, 2010 by Hannah

Astronomy
Why didnít the Universe collapse into a black hole in the past when there was so much matter in such a small space? (a) Most of the particles in the early Universe were unstable and decayed before a black hole could form. By the time only stable particles were left (protons, ...
October 1, 2013 by qwerty

Science
What is the arrangement of the objects in the universe from largest to smallest
January 28, 2009 by Kiana

science
How does Marie Curie help us understand the universe in which we live?
May 8, 2009 by Sam

Astronomy
1. When comparing the sizes of stars, our Sun is: a.) the largest star discovered to date b.)one of the larger stars discovered to date c.)medium size as compared to other stars d.)one of the smallest stars discovered to date My answer: c or d 2. What information can ...
April 24, 2009 by John

physics
Two stars are 3.80 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.19 m and just detects these stars as separate objects. Assume that light of wavelength 550 nm is being observed. Also assume that diffraction effects...
April 15, 2012 by linds

physics
Two stars are 2.4 ◊ 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.72 m and just detects these stars as separate objects. Assume that light of wavelength 590 nm is being observed. Also, assume that diffraction ...
May 7, 2013 by Ashley

physics
Two stars are 4.40 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.03 m and just detects these stars as separate objects. Assume that light of wavelength 550 nm is being observed. Also assume that diffraction effects...
April 18, 2014 by Ethan

Science
How has Marie Curie helped us understand the universe in which we live?
May 19, 2009 by Sam

Physics help
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 ...
May 23, 2013 by SOmebody

science
How does a stars life begin ?
November 22, 2013 by victoria

Science Question 2
The entire spectral classification of our Sun is what? A.M5V B.G2lB C.K9lll D.Not Given The sun is a G2 I don't know what LB stands for. please read: http://www.solstation.com/stars/sol.htm
October 19, 2006 by Liz

American Government
"Universe" is a term used to describe a. a politician's constituency b. the entire group of persons in a given poll. c. the entire group of persons whose opinions a poll seeks to measure d. the group that supports the activities of an interest group A universe or population is...
November 25, 2006 by kesha

Science
Considering matterand energy together the smallest component of the universe seems to be
February 16, 2009 by Siedah

science
what is the theory that the universe began in a giant explosion (two words) it has 7 letters
June 22, 2011 by TAYLOR

Science
Which star shown on the luminosity and temperature of stars graph in the Earth Science Reference Tables is currently at the Sun's final predicted stage of development, and how do you know? a. Polaris b. Procyon B c. Sirius d. Rigel
May 24, 2009 by Angie

science
what color are the coolest stars in the galaxy
June 2, 2008 by kristin

science
what are some physical properties of stars
October 6, 2012 by candy

Science ( Need help really bad Please!)
An object's weight is dependent upon its location in the universe. Why is this true? A. This is true because weight is the magnitude of gravitational force acting on an object, and since gravitational force varies in different places in the universe, weight also varies. B. ...
February 13, 2014 by Julie

physics
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.78x1011 m apart. The larger of the two stars has a mass of 4.19x1030 kg, and its center is 1.75x1011 m from the system's center of mass. What is the mass of the smaller star?
March 27, 2014 by Anonymous

Physics
A star of mass 2.0 1028 kg that is 1.6 1020 m from the center of a galaxy revolves around that center once every 3.4 108 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 ...
February 16, 2007 by winterWX

Science
"Describe the role of gravity as the force that governs the movement of the solar system and the universe." I don't get it.
September 27, 2010 by Joel

science
name of stars in caprcornius (seagoat)constellation
October 4, 2007 by therersa

Science
What is indicate by the color of the stars? List and label them.
February 5, 2014 by Anonymous

Science
with 1*10 to the power of 22 stars in the sky. I can't put 22 in small form above 10, so that's why I'm wording it by saying to the power. So: with 1*10 to the power of 22 stars in the sky. List several factors that limit us to being able to see only about 2000 to 3000. *shape...
February 22, 2010 by Sara

Science
Because we can't see through a gas cloud, we would not use optical telescopes which collect visible light to form images of stars inside a gas cloud. Which type of telescope would we use to study new stars inside the giant gas cloud and why? My thoughts are Infrared and radio...
April 7, 2014 by Cassie

Physics
In a binary star system, two stars orbit about their common center of mass, as shown in the figure . If r2 = 2r1, what is the ratio of the masses m2/m1 of the two stars?
July 30, 2011 by Real

science
Can you please tell me why the German Philosopher Nietzche went mad with closed universe theory.
September 3, 2008 by Julia

science
does the stars in a galaxy slowly rotate around a center.
March 22, 2011 by shakiyla

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members