1. Math

    The speed of light is 3¡Á¡¼10¡½^8 meters/second. It takes 5¡Á¡¼10¡½^2seconds for light to travel from the sun to the earth. What is the distance in meters between the sun and the earth? Express your answer in scientific notation.

    asked by Howayda on January 10, 2016
  2. math

    The space station is going 17500 mph as it orbits the earth. How long will it take to orbit 1 time if the earths diameter is 7926 miles and the space station orbits at 240 miles above the earth.

    asked by Bob on March 25, 2012
  3. Physics

    1. Planet X orbits the sun with a mean orbital radius that is 6200 times that of earth. Its diameter is twice that of earth, and its mass is 8 times that of earth. A) Calculate the year of the planet X. B) Calculate the acceleration due to gravity on

    asked by Sandhya on April 22, 2009
  4. Social Studies

    Where in North America did the Mound Builders live? in the Southwest in the Northwest in the Central Mexico in eastern North America THIS ONE Which statement best describes the agriculture of the Mayas Each year, they rotated the kinds of crops planted.

    asked by Valerie on September 27, 2017
  5. history

    Which identifies why the Nixon administration decided to bomb Cambodia? a. North Vietnamese troops were using trails into Cambodia to get supplies. b. Cambodia secretly decided to ally with North Vietnam and planned to attack US forces. c. Ho Chi Minh was

    asked by Charlie on August 21, 2018
  6. Physical Science

    Galaxy A is 600 million light years from earth. Galaxy B is moving away from the earth at a speed that is 80% as large as that of Galaxy A. How far from earth is Galaxy B? A. 750 million light years. B. 640 million light years. C. 540 million light years.

    asked by Anonymous on October 27, 2011
  7. physics

    Jessica weighs 540 Newtons, According to Newton's 3rd law, if the Earth pulls on Jessica 540 N, then Jessica pulls on the Earth 540 N acting in the opposite direction. If she trips while rollerblading, why will she fall to the ground

    asked by Kelli Kenyon on May 2, 2011
  8. physics

    Consider a spacecraft that is to be launched from the Earth to the Moon. Calculate the minimum velocity needed for the spacecraft to just make it to the Moon’s surface. Ignore air drag from the Earth’s atmosphere. Hint: The spacecraft will not have

    asked by bee-z on October 24, 2012
  9. Geometry

    A satellite has-recently been placed in a nearly circular orbit 2000 kilometers above the earth’s surface. Given that the radius of the earth is approximately 6400 kilometers and that the satellite completes its orbit in 12 hours, calculate the speed of

    asked by Keenan on May 17, 2011
  10. physics

    Consider a spacecraft that is to be launched from the Earth to the Moon. Calculate the minimum velocity needed for the spacecraft to just make it to the Moon’s surface. Ignore air drag from the Earth’s atmosphere. Hint: The spacecraft will not have

    asked by Anonymous on October 24, 2012
  11. math

    A man travels 4km due north,then travels 6km due east and further travels 4km due north .how far he is from the starting point.

    asked by nripesh on April 22, 2013
  12. physics

    A plane flies from base camp to Lake A, 220 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to

    asked by carlton on September 12, 2012
  13. science help PLS

    Which of the following correctly describes a way in which Earth’s atmosphere interacts with the geosphere? It contains gases that living organisms breathe. It contains gases that trap incoming solar radiation. It provides a medium for cycles that provide

    asked by Oscar on December 15, 2015
  14. Math

    A jet is flying through wind blowing 55mi/h at a bearing (clockwise from north) of 35°. The jet is flying with a speed of 550 mi/h at a bearing of 65°. Find the resultant of the planes velocity vector and the winds velocity vector. Also find its

    asked by Adam on February 23, 2016
  15. MATH!!!!

    The CN Tower is 553m high. A person in a boat on Lake Ontario, at a point B due south of the tower, observes the top (T) of the tower at an angle of elevation of 8 degrees. At the same time, another person, at a point C on a bearing {S 85 degrees E } from

    asked by Kaitlin on September 26, 2006
  16. physics

    please help find the resultant of these two vectors: 2.00 * 10^2 units due east and 4.00 * 10^2 units 30.0degrees north of west please show me step by step how to do this thanks for any help!

    asked by y912f on February 13, 2009
  17. Physics

    A boat is rowed due North at 7.0 km/h directly across a river that flows due East at 4.0 km/h. Find the boat's resultant speed.

    asked by Tony on April 15, 2010
  18. physics

    A car travels 3.0km due west and then 2.0km to the north. Find the magnitude and direction of the car’s resultant displacement?

    asked by Andy on February 3, 2014
  19. physics

    An object is acted by 3 coplanar forces:30 newton to the north, 20 in the direction S20degrees E and 25 newton in a direction W20degrees S.Find the resultant

    asked by Jas on April 5, 2011
  20. science

    Which statement best describes Newton’s Law of Universal Gravitation? A.Large objects, like Earth and the Sun, attract other objects everywhere in the universe. B.Gravity is a kind of magnetic force between objects and Earth. C.Gravity is the result of

    asked by victoria on February 17, 2014
  21. physics

    The polar ice caps contain about 2.76E+19 kg of ice. This mass contributes negligibly to the moment of inertia of Earth because it is located at the poles, close to the axis of rotation. Estimate the change in the length of the day that would be expected

    asked by Jordan on April 9, 2010
  22. physics please help

    An astronaut stands at a position on the Moon such that Earth is directly overhead and releases a Moon rock that was in her hand. (c) What is the gravitational force exerted by the Earth on the same 2.7-kg rock resting on the surface of the Moon? answer in

    asked by Adam on May 25, 2012
  23. Precalculus

    A ship is heading due north at 10 mph. The current is flowing southwest at 3 mph. Find the actual bearing and speed of the ship.

    asked by KG on December 12, 2017
  24. physics

    HELP PLEASE!!! A satellite moves in a circular orbit around Earth at a speed of 5085 m/s. (a) Determine the satellite's altitude above the surface of Earth. (b) Determine the period of the satellite's orbit.

    asked by bill on September 21, 2010
  25. physics

    find the force and force direction of a 1.0x10^-6 C charge that is 2cm North and 3cm East of a 2x10^-6 C charge

    asked by sammeh on November 27, 2009
  26. bio

    4. During the process of photosynthesis, light energy is used directly in the A. formation of ATP B. reduction of NADP C. excitation of chlorophyll electrons D. splitting of carbon dioxide molecules I think it is a or d but i am unsure... It is a or d.

    asked by adam on June 29, 2006
  27. ahmadu university zaria nigeria

    Ship A is sailing due south at 25 km/hr. At the same time, a second ship B, 50km miles south of A, is sailing due east at 20 km/hr. (a) at what rate are they approaching or separating at the end of one hour? (b) At what rate are they approaching or

    asked by agora on May 2, 2013
  28. Physics

    A satellite with an orbital period of exactly 24.0 h is always positioned over the same spot on Earth. This is known as a geosynchronous orbit. Television, communication, and weather satellites use geosynchronous orbits. At what distance would a satellite

    asked by Becky on March 29, 2011
  29. history SUE HELP MEEEE

    Which of the following correctly describes an example of how climate affected the settlement of countries in North America? Most of the people in the United States settled in the Midwest, where temperatures are less extreme.*** Most of Canada’s

    asked by PLS HELP ME on February 19, 2016
  30. Physics

    Emmy kicks a soccer ball up at an angle of 45° over a level field. She watches the ball\'s trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. Assume that air resistance is negligable, and plot the

    asked by Breauna on February 13, 2015
  31. geography

    How many degrees of latitude and longitude separate a location at the intersection of the international date line and the antarctic circle from another location at the intersection of the prime meridian and the tropic of cancer? The Antarctic Circle is at

    asked by lisa on January 29, 2007
  32. USA Colonists History

    |rich soil |available land |wildlife |sea life |forests |fresh water |minerals such as water Many people from Europe came to North America during the 1600s and 1700s to explore the land and make money. using information from the chart above and your own

    asked by I and Me on June 13, 2014
  33. AP US History

    In the early 19th century, Americans sought to resolve their political disputes through compromise, yet by 1860 this no longer seemed possible. Analyze the reasons for this change. Im having problems finding information to support this. This is my

    asked by Morgan on January 3, 2013
  34. Physics

    In an attempt to reduce the extraordinarily long travel times for voyaging to distant stars, some people have suggested traveling at close to the speed of light. Suppose you wish to visit a star which is 410 ly away, and that you want your 24000 kg rocket

    asked by Chris Sanchez on May 13, 2011
  35. Science--Myanswer Plz, plz

    Electric charges that are different attract each other. repel each other. **** exist in pairs. do not interact. Magnetic field lines around a bar magnet are only perpendicular to the magnet. spread out from one pole and curve around to the other. ****

    asked by HeELP ME FAST!!! on May 23, 2014
  36. Social Studies

    Which Reconstruction plan divided the South into military districts? Choices are: A. the 100% plan B. Johnson's plan C. Lincoln's plan D. the Radical Republican plan Please help. Cant find answer.

    asked by Samantha on February 17, 2012
  37. Dav nandraj:science

    A man moves 3.5m towards east then he moves 2m in south then 4.5m towards east. Find its distance and displacement.

    asked by Suman on July 6, 2012
  38. physics

    A person walks 37.0◦ north of east for 5.00 km. Another person walks due north and due east to arrive at the same location. How large is the east component of this second path?

    asked by KDRAG on September 27, 2010
  39. physics

    An airplane is flying with a speed of 240 km/hr at an angle of 27 degrees north of east. a) How fast is the plane flying north? b) How fast is the plane flying east?

    asked by jacob on September 30, 2010
  40. Math

    Geometry- Three streets intersect with one another. East Street runs horizontally,North Street runs vertically and Fourth Street runs diagonally and intersects both East Street and North Street. What geometric figure do the three streets form?

    asked by Bryce on January 30, 2012
  41. History

    North America Foods - Exported to Chilles---------------South Asia Sweet potatoes------- China Corn -----------------China, Africa Manioc----------------Africa Tomatoes--------------Europe Based on the chart and what you know of the Columbian Exchange,

    asked by Allikay on September 29, 2016
  42. History

    North America Foods - Exported to Chilles South Asia Sweet potatoes China Corn China, Africa Manioc Africa Tomatoes Europe Based on the chart and what you know of the Columbian Exchange, which statement best explains why people in West Africa eat manioc?

    asked by Allikay on September 29, 2016
  43. Calculus

    A team has been working to convert diesel-powered cars to run just as efficiently on used cooking oil! They want to compare the mileage and speed of their prototype with that of the diesel-powered car. The prototype is 100 meters south of an intersection,

    asked by Cynthia on August 1, 2011
  44. history1301

    I need some History help! Its US History. OK first of all I would like to post the question I need help answering. I also would like to post another question that I have answered and see if it was the right answer that I came up with. thanks for the help!

    asked by beth on December 6, 2009
  45. trig

    An airplane has air speed of 540 mph and a heading of 50*. The wind is blowing from the north at 27 mph. Find the plane's ground speed and course direction.

    asked by Marlo on April 10, 2014
  46. trigo

    A plane in calm weather flies east at 20 K.P.H. A 45 K.P.H wind blows from the north. Find the direction and speed required to keep the plane in it's original course and speed.

    asked by carl on November 21, 2015
  47. Trigonometry

    A plane is headed due east with airspeed of 240 mph. if a wind at 40 mph is bloiwing from the north , find the ground speed of the plane.

    asked by Roy on September 9, 2012
  48. Science

    Explain the following quote: ... it was several weeks before an emigrant from Earth could adapt to it. On the Moon the human body had to learn a whole set of reflexes. It had, for the first time, to distinguish between mass and weight. A man who weighed

    asked by Kimmy on October 2, 2014
  49. history

    1. what impact did the education improvement act of 1984 have on south carolina a. South carolina teachers were paid the most in the southeast b. the state's schools were ranked the lowest in the nation c. fewer students took high school exit exams d. the

    asked by please help on May 16, 2016
  50. physicccccccccccccc

    I did answered my question but not sure weather is correct or not 1)How is X-ray produced and why can it be used to help us see the structure inside the body? X-rays are produced when electrons strike a metal target. The electrons are liberated from the

    asked by john on May 6, 2017
  51. physics

    The Moon has a mass of 7.35  1022 kg and its equatorial radius is 1.74  106 m. Earth’s mass is 5.97  1024 kg and its equatorial radius is 6.38  106 m. (a) Calculate the magnitude of the gravitational force exerted by i) the Moon on a fully suited

    asked by jake on July 8, 2013
  52. Calculus

    An airplane has airspeed of 724 k/h at bearing of North 30 degrees East. If the wind velocity is 32 from west. find the ground speed and direction of plane. Teacher gives solution of 740.5 k/hr and 57.9 degrees. Can anyone show steps?

    asked by Trey on June 1, 2015
  53. science

    I need to find a thin layer of ice that has condensed? go north :-) or... Put 1/3 cup of hot water in the freezer with a piece of plastic over it. The warm moist air will rise and condense on the plastic lid and freeze there.

    asked by albia on March 14, 2007
  54. math/chem

    it is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g/metric ton. a metric ton is 1000kg. at this concentration, what mass of uranium is present in 1.0 mg of earth's crust?

    asked by Joe on August 23, 2010
  55. Chemistry

    It is estimated that uranium is relatively common in the earth’s crust, occurring in amounts of 4 g/metric ton. A metric ton is 1000 kg. At this concentration, what mass of uranium is present in 1.0 mg of the earth’s crust?

    asked by Leo on February 15, 2010
  56. physics

    Calculate the angular momentum of the Earth the arises from its spinning on its axis. Also calculate the angular momentum of the Earth that arises from its orbital motion around the sun. Please help I'm stumped on a take home test.

    asked by nouh on May 8, 2016
  57. science

    Granite is an igneous rock that forms from magma cooled below Earth's surface.Why would granite have larger crystals than igneous rocks formed from lava cooled above Earth's surface?

    asked by Anonymous on January 29, 2014
  58. Physics- Relativity

    A lighthouse sweeps its beam of light around in a circle once every 7.2 s. To an observer in a spaceship moving away from Earth, the beam of light completes one full circle every 9 s. What is the speed of the spaceship relative to Earth

    asked by John on September 9, 2015
  59. trig

    You are sky diving and are trying to land on a target with a radius of 15 m. You land 10 m west and 10 m north of the center of the target. a. Write an inequality to describe the region inside the target area. b. Do you land within the target area? c. If

    asked by Elle on December 20, 2011
  60. Physics

    An object moves a to b, 4kms due west and then moves from b to c, 3kms due north. Find the displacement

    asked by JR on August 20, 2015
  61. Maths

    A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a platform of dimensions 28m by 22m.find the hight of the platform.

    asked by Anonymous on April 7, 2013
  62. Maths

    A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a platform of dimensions 28m by 22m.find the hight of the platform.

    asked by Anonymous on April 7, 2013
  63. Maths

    A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a platform of dimensions 28m by 22m.find the hight of the platform.

    asked by Anonymous on April 7, 2013
  64. Maths

    A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a platform of dimensions 28m by 22m.find the hight of the platform.

    asked by Anonymous on April 7, 2013
  65. physics

    A) What is the minimum speed, relative to the Sun, necessary for a spacecraft to escape the solar system if it starts at the Earth's orbit? B) Voyager I achieved a maximum speed of 125 000 km/h on its way to photograph Jupiter. Beyond what distance from

    asked by jean on May 30, 2007
  66. SAT Essay

    I did exactly what I was told to do, I started from scratch. Any better? Topic: At a recent conference on global issues, several panels debated possible solutions to problems facing the world today. There is no consensus on the solutions or even on the

    asked by Sahil on August 26, 2008
  67. english

    Read this excerpt from “Ain’t I a Woman?” by Sojourner Truth. In which sentences does she make an emotional appeal to the audience by talking about her personal hardships? 1). I think that 'twixt the negroes of the South and the women at

    asked by marie on March 14, 2017
  68. Ethics

    1. Hill claims that a fruitful way to think about the badness of destroying the environment is? To think about what kind of human would choose to destroy the earth. To appeal to theories about God and care for the earth. To examine people’s intuitions

    asked by Darcy Deagan on August 8, 2014
  69. science

    . How does the principle of uniformitarianism accounts for occasional catastrophic events such as meteorite impacts, huge volcanic eruptions, or great earthquakes? In what ways do geologic processes affect a person's daily life? . When astronauts brought

    asked by bubba on May 23, 2011
  70. World Geography

    South America is a realm of diverse cultural landscapes and numerous immigrant sources. Some countries that are relatively homogeneous culturally, such as Columbia and Venezuela, are as divided politically and economically as are other countries with

    asked by Stephanie on February 10, 2009
  71. Physics

    Let's say that the force of gravity on the equator of the Earth is 9.81 m/s^2 what is the magnitutde of gravity of something at 41.603221,-73.087749 ???? I'm guessing that 41.603221,-73.087749 is lattitude and longittude so I really have no idea what to

    asked by HELP ME! on May 19, 2009
  72. Physics

    If you were to push a pile of books across a table, in which location would this be the easiest? The moon(my choice) Earth Same amount no matter the location Jupiter Suppose a large pizza is placed on earth, the moon, and Jupiter. In each location, the

    asked by Pookie on October 1, 2018
  73. pre calc

    The velocity of an aiplane heading east at 400 knots and a wind velocity of 50 knots northeast. The airplane encounters this wind, show the resultant velocity. What is the resulant speed and direction of the airplane? (the direction is the angle the

    asked by Julie on March 31, 2008
  74. physics

    In a marathon race Chad is out in front, running due north at a speed of 3.87 m/s. John is 98 m behind him, running due north at a speed of 4.63 m/s. How long does it take for John to pass Chad?

    asked by Redgy22 on September 13, 2012
  75. Physics

    In a marathon race Chad is out in front, running due north at a speed of 3.98 m/s. John is 95 m behind him, running due north at a speed of 4.52 m/s. How long does it take for John to pass Chad?

    asked by Hannah on October 5, 2015
  76. physics

    In a marathon race, Chad is out in front, running due north at a speed of 3.92 m/s. John is 92 m behind him, running due north at a speed of 4.33 m/s. How long does it take for John to pass Chad?

    asked by Dee on January 31, 2013
  77. physics

    In a marathon race, Chad is out in front, running due north at a speed of 3.92 m/s. John is 94 m behind him, running due north at a speed of 4.33 m/s. How long does it take for John to pass Chad

    asked by jessica on May 23, 2016
  78. physics

    In a marathon race, Chad is out in front, running due north at a speed of 4.09 m/s. John is 94 m behind him, running due north at a speed of 4.28 m/s. How long does it take for John to pass Chad?

    asked by Rhonda on January 27, 2016
  79. Physics

    On Earth a fit astronaut without a space suit and life support pack can leap straight up and leave the ground with an initial vertical velocity of about v1y = 2.4 m/s and rise to a height of about h = 0.24 m above the point where he first loses contact

    asked by Alexandra on September 17, 2014
  80. Physics

    (c) On Earth a fit astronaut without a space suit and life support pack can leap straight up and leave the ground with an initial vertical velocity of about v1y = 2.4 m/s and rise to a height of about h = 0.24 m above the point where he first loses contact

    asked by Alexandra on September 17, 2014
  81. calculus

    Two cars start from the same point at the same time. One travels north at 25 mph, and the other travels east at 60 mph. How fast is the distance between them increasing at the end of 1 hr? Find D after 1 Hr, solve D^2=25^2+ 60^2

    asked by Allison on October 23, 2012
  82. please help! asap. thank you!

    I need to find out events that are part of adolescences lives in korea. ex.birthday.. thanks! .. btw, would Koreans celebrate their 16th birthday party like how they celebrate it in North America?

    asked by Kim on January 15, 2008
  83. Physics

    Using GRAPHICAL METHOD, find the vector sum of a force of 20 N directed 60 degrees east of north and a force of 60 N directed west? Please show all steps and equations used.

    asked by Alyssa on September 19, 2015
  84. Geography

    Employment opportunities were limited in Tijuana. Manuel, who had been unemployed for several months, decided to join a group of people traveling north to find work. What concept is described by the paragraph above? A)population growth B)urbanization

    asked by george on December 15, 2009
  85. world geography

    Employment opportunities were limited in Tijuana. Manuel, who had been unemployed for several months, decided to join a group of people traveling north to find work. What concept is described by the paragraph above? a)population growth b)urbanization

    asked by ty washington on October 27, 2014
  86. Geography

    Employment opportunities were limited in Tijuana. Manuel, who had been unemployed for several months, decided to join a group of people traveling north to find work. What concept is described by the paragraph above? a)population growth b)urbanization

    asked by george on December 15, 2009
  87. Math

    A team has been working to convert diesel-powered cars to run just as efficiently on used cooking oil! They want to compare the mileage and speed of their prototype with that of the diesel-powered car. The prototype is 100 meters south of an intersection,

    asked by Anonymous on August 2, 2011
  88. calculus

    A team has been working to convert diesel-powered cars to run just as efficiently on used cooking oil! They want to compare the mileage and speed of their prototype with that of the diesel-powered car. The prototype is 100 meters south of an intersection,

    asked by need help! on August 1, 2011
  89. physics

    An airplane flies 200 km due west from city A to city B and then 340 km in the direction of 35.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C? °

    asked by joe on September 24, 2010
  90. physics

    An airplane flies 200 km due west from city A to city B and then 280 km in the direction of 30.5° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? in km? (b) Relative to city A, in what direction is city

    asked by Elisa on June 1, 2008
  91. physics

    An airplane flies 200 km due west from city A to city B and then 260 km in the direction of 32.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? ?km (b) Relative to city A, in what direction is city C?

    asked by Shetina on February 10, 2008
  92. 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

    asked by pamela on June 3, 2013
  93. 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

    asked by Tazkiyah on March 6, 2014
  94. 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

    asked by Anonymous on October 19, 2012
  95. Math

    A Kenyan bank buys and sells foreign currencies Buying (Ksh) Selling(Ksh) 1 Sterling pound 130.10 130.54 1 South African Rand 9.52 9.8 A businessman on a trip to Kenya had pound 50,000 which he coneveted to Kenya shillings. While in Kenya, he spent 80% of

    asked by Kd on October 3, 2018
  96. Science

    Which of the rock-forming mineral groups makes up the largest group of minerals in the Earth's crust? Look here for your answer. http://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=minerals+earth%27s+crust&btnG=Search

    asked by Liz on October 3, 2006
  97. math

    The cruising speed of a Boeing 767 in still air is 530 mph. Suppose that a 767 is cruising directly east when it encounters an 80 mph wind blowing 40 degrees south of west. Sketch the vectors for the velocities of the airplane and the wind. Express both

    asked by Connie on February 17, 2014
  98. Social Studies

    In which region of Asia would you find the Gobi Desert? a. East Asia b. Western Asia c. South Asia d. Southeast Asia

    asked by Kaai97 on October 16, 2015
  99. Physics Check

    Since I've been waiting to get my answers checked for my submission #2, I moved on to my submission #3 and I need some questions checked for my submission #3 please. 1.)If a blue car drives 10km/h across the deck of an ocean liner that is traveling at

    asked by Ariel on July 12, 2010
  100. physics

    Suppose that the displacement of a particle is related to time according to the expression delta x = ct^3. What are the SI units of the proportionality constant c? My answer: delta x = ct^3 m = c s^3 (s: seconds) m/s^3= c The SI units for c: m/s^3 correct?

    asked by galileo on January 15, 2007