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October 23, 2014

Search: science [planets/stars]

Number of results: 25,463

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

Astronomy
Retrograde motion describe the A backward motion of the stars relative to Earth B uniform circular motion exhibited by the planets C irregular speeds at which the planet travel. D backward motion of the planets with respect to the stars I think the answer is A But my book ...
March 28, 2010 by B

astronomy
what is search for extrasolar planets? Looking for planets around stars other than our own sun.
May 5, 2007 by gopal

Science
Planets shine by reflected sunlight. How can planets be brighter than stars? Approxinmately how many times brighter than Mars is Earth's full moon? (i do know the Moon's apparent magnitude equals -12.6) Could we see the sun if it were 32.6 light years from Earth?
April 19, 2009 by Maeve

7th grade science
How does the gravity of planets and moons affect stars? Thanks!
April 28, 2009 by Jordyn

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

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

Science
Describe the apparent motion of the stars and planets that is caused by the revolution and rotation of the earth.
March 11, 2013 by Aj

science [planets/stars]
Hey.. Well, first things first.. I'm given an assignment from my Earth Science class. Right now we're doing a unit about planets and Earth and sun. My teacher told us to write a [maximum] 2 page essay, which is also supposed to be descriptive. In the essay, we have to pretend ...
May 19, 2009 by xxxx

Science; Solar System
True or False 5. The outer planets are small, rocky planets with iron cores. true false 6. It is unlikely that the sun formed alone. It probably formed with a cluster of stars like the sun. true false
January 28, 2013 by Jman

Science
How do you compare and contrast the distances between the planets in the solar system. Which planets are relitively close together and which planets are far apart?
December 1, 2007 by Chandni

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

Science
According to science, the fastest speed posssible for anything is the speed of light. The speed of light is about 186,000 mies per second. That means taht in one minute, lighttravels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. ...
July 8, 2012 by Rafi

science
What important characteristics do scientific theories and laws have? a) is always about planets and stars b) is correct and scientific c) explains and predicts d) is the same as a hypothesis c
September 5, 2010 by pam

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

geology
why do planets appear to move with respect to stars?
September 11, 2012 by k

s
According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. ...
June 3, 2013 by pamela

reading
According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. ...
October 19, 2012 by Anonymous

Phsyics
How might they use spectroscopy to deter- mine the atmospheric composition of these planets? 1. None of these 2. By analyzing the spectrum of the surface of the planets. 3. All of these 4. By analyzing the molecules that compose the planets. 5. By analyzing the spectrum of the...
November 13, 2013 by Andrew

Reading skills
According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. ...
March 6, 2014 by Tazkiyah

science
Our solar system consists of_____? a) the moon and the planets b) the sun and the planets c) the sun and the moon d) the sun and the planets with their moons Just need to know if my answer or right or wrong. Thanks! :) d
August 18, 2010 by ant

Science
Astrologers relate the location of stars and planets to events in human lives. Many years ago, people classified astrology as a science. Why do modern scientists consider astrology to be a pseudoscience A. Astrology does not involve the use of telescopes. B. Astrology does not...
October 20, 2013 by Anne

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

science planets
how dos the alignment of the planets cause seasons?
March 24, 2010 by leyla

Astronomy
Which one supports the solar nebula theory of the origin of the solar system? a.Disks are rare around young stars. b.Disks are common around young stars. c.The sun is the least massive object in the solar system. d.Planets are round.
November 23, 2010 by Stephanie

Science
Y r the distances to the planets given in km? I've already answered the 2nd part to this question, and this is the fist part. I think that the distances to the planets are given in kilometres because all the planets aren't that far away from eachother that they need to be ...
February 22, 2010 by Sara

Science-drwls
Y r the distances to the planets given in km? I've already answered the 2nd part to this question, and this is the fist part. I think that the distances to the planets are given in kilometres because all the planets aren't that far away from eachother that they need to be ...
February 22, 2010 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
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

REALLY EASY
Which of the following are a consequence of the Earth's yearly motion around the Sun? (check all that apply) 1.the Sun appears in different constellations in different seasons 2.the planets look different than stars 3.the Sun rises and sets 4.the Moon exhibits phases 5....
September 19, 2011 by Kristina

science
i'm not sure witch statement is true .The earth has a stronger gravitational pull than the Sun because it is smaller in mass. .Planets would travel in a straight line if it weren't for the force of the Sun's gravity. .The Sun's gravitational pull is weaker on planets that are ...
October 23, 2008 by Alie

Science (planets/gravity)
What keeps all the planets the big ones and the small ones in orbit in our big solar system? A.The gravity from the sun. B.The gravity from the moon. C.The gravity between all the planets. D.The gravity from the beautiful our earth. What do all the planets orbit around? the ...
April 18, 2007 by Hot stuff

physics
a spacecraft is traveling in space fa from any planets or stars. How much force is required to maintainthe spacecraft's speed?
June 13, 2012 by Louis

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
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

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

science
write T if the statement is true or F if it is false. a.)All the planets travel around the sun at the same speed.my answer is T. b.)The sun's gravity keeps the planets in orbit around it. my answer is F. c.)There is an asteroid belt between Jupiter and Saturn.my answer is T. d...
January 9, 2014 by Anonymous

science/planets
Q: What two things does Earth have in common with the outer planets called gas giants? A: A)relative temperatures above freezing B)moons and magnetic field C)fairly long days and short nights D)volcanic activity and geysers
December 30, 2013 by Nikoa

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
Both comets and planets orbit the sun. How do their orbits differ? Comets orbit elliptically, and planets orbit more circularly. Please correct me if Im wrong, thanks
February 15, 2010 by Sara

Science-Help
Both comets and planets orbit the sun. How do their orbits differ? Comets orbit elliptically, and planets orbit more circularly. Please correct me if Im wrong, thanks
February 15, 2010 by Sara

Astronomy
Purpose the run somehow becomes a black hole without change in its mass , it will pull into itself a.all the planets b.only mercury c.all the planets from mercury to mars d.none of the planets
November 3, 2012 by Ajai

Science
Ancient astronomers were troubled by variations in the brightness of the various planets with time. Does the Ptolemaic or the Copernican model account better for these variations. Read: (Broken Link Removed) For the planets the Copernicus model was more accurate and realistic ...
January 4, 2007 by Stacy

Physics
In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 3.3 1011 m, with a period of 1080 days. Find the mass of the star
February 11, 2011 by Renee

Physics
In recent years a number of nearby stars have been found to possess planets. Suppose the orbital radius of such a planet is found to be 5.5 x1011 m, with a period of 1210 days. Find the mass of the star.
September 20, 2011 by Anon

Physics
In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 3.0 1011 m, with a period of 1000 days. Find the mass of the star.
June 29, 2012 by Sierra

physics
In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 3.0 1011 m, with a period of 980 days. Find the mass of the star.
October 4, 2012 by Garcia

Physics
A space probe is carried by a rocket into outer space where it continues to move on its own in a straight line. What keeps the probe moving? Is the answer: the gravitation forces from different stars and planets
March 1, 2013 by Sally

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

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

science
What is on pulsars and pulsar planets. Using this information, describe what you might encounter on your space mission. Thank you for using the Jiskha Homework Help forum. Rather than my posting an entire page of sites, please go to the following, which I found with a Google ...
May 15, 2007 by Rahul

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

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

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

Planets- I Love Space!
why the outer planets did not lose the lighter gases in their atmospheres.?
April 14, 2014 by Chloé

science
how is heliocentric(planets and Earth revolve around the sun) connected to science? math? the world? you? and y is it important?
April 20, 2008 by anonymous

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

E.L.A. PLEASE CHECK!
Which choice best describes the underlined words in the sentence? Use a star chart to identify the stars and planets on a clear night. Underlined: (The whole sentence is underlined) A-simple predicate B- compound predicate C- complete predicate D- none of the above I think it ...
October 1, 2014 by Skye

Science
Why do gas giants have more moons than the terrestrial planets? The gas giants have more moons than the terrestrial planets because of their great masses which result in stronger gravitational fields. Any other info would be appreciated, please tell me if this is correct, thanks
February 16, 2010 by Sara

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 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

Physics help
Two planets, each with a mass of 4.990E+27 kg, are released from rest some 2.850E+11 m apart. What are their speeds (in m/s) as they crash together? Assume that the planets have a diameter of 1.40E+08 m.
November 27, 2011 by Anonymous

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

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

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
What are the planets in order?
June 8, 2009 by Jackie James

science
how many planets we have
July 7, 2011 by rangrang

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

grade nine space
Compare the following objects in the our Solar System in terms of 1. Where they are located and 2. What they are composed of : Sun Terrestrial planets Jovian planets Asteroids Comets Meteroids
January 17, 2011 by peyton

science
what planets are closer to the moon
April 20, 2009 by rocks

Science
How did planetesmals form planets?
October 17, 2013 by Ariyon

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
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 many minor planets(aka asteroids) are there?
March 12, 2008 by Lis

physics
The weight of an object is the same on two different planets. The mass of planet A is only fifteen percent that of planet B. Find rA/rB, which is the ratio of the radii of the planets.
November 7, 2010 by megan

Physics
The weight of an object is the same on two different planets. The mass of planet A is only sixty percent that of planet B. Find the ratio of the radii of the planets.
September 20, 2013 by Briana

chemistry
Which statement is the best example of pseudoscience? Mike joined a group that studies phrenology. C.J. joined a group that studies endangered species. Katarina joined a group that studies herbal remedies. Lee joined a group that studies stars and planets
February 10, 2013 by samantha

physics
The weight of an object is the same on two different planets. The mass of planet A is only forty-five percent that of planet B. Find the ratio rA/rB of the radii of the planets.
February 7, 2013 by Dee

PHYSICS
The weight of an object is the same on two different planets. The mass of planet A is only thirty-five percent that of planet B. Find the ratio rA/rB of the radii of the planets.
September 20, 2014 by Steven

Physics
(II) Every few hundred years most of the planets line up on the same side of the Sun. Calculate the total force on the Earth due to Venus, Jupiter, and Saturn, assuming all four planets are in a line, Fig. 5–44. The masses are mV = 0.815 mE, mj = 318 mE, mSat = 95.1 mE, and ...
October 2, 2014 by clay

physics
Find the change in the gravitational force between two planets if the masses of both planets are doubled but the distance between them stays the same. Express your answer as an integer.
March 8, 2012 by jim

sci
Find the change in the force of gravity between two planets when the masses of both planets are doubled, but the distance between them remains the same. Please include your work!
February 20, 2013 by Anonymous

Science
Why do all planets revolve around the sun?
April 5, 2011 by Carissa

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