1. science

    which planet other than earth may be livable by humans?

    asked by Janelle on February 20, 2011
  2. science

    how do geologists know the earth is layered inside?

    asked by qwer on December 11, 2011
  3. Social Studies

    ~URGENT~ Which of the following is a characteristic of Earth's first people?

    asked by Unicornheart on October 29, 2018
  4. Geography

    What happens when we move vertically upwards from the Earth ?

    asked by Rahul on August 10, 2018
  5. Physics

    How far above the surface of the earth would you have to be before your weight is reduced by 12.89%? Please Help !

    asked by Mike on January 22, 2013
  6. English/Reading

    Hidden meaning? PPPP --------- earth Thanks!

    asked by DJ on September 6, 2007
  7. social studies

    what are the 5 layers of the earth and are they liquid or solid?

    asked by robin on September 14, 2007
  8. physical science

    The declination of the Sun on March 21 on Earth is

    asked by Fonda on December 16, 2011
  9. earth

    What is the weight of a 30 kilogram chair on Earth?

    asked by dfaz on May 11, 2011
  10. Mechanics

    If an object weighs 39.2 N on earth what is its mass

    asked by Anonymous on June 16, 2010


    asked by armaan on May 7, 2013
  12. Science help

    DESCRIBE some uses of satellites orbiting Earth. I need help! Will you help me?

    asked by Mckenzie on April 11, 2018
  13. English

    Would down to earth be considered a character trait?

    asked by Lee on November 13, 2014
  14. Science

    how many of earth's atmospheres is on you at sea level?

    asked by Rosy on June 8, 2015
  15. Competitive exam

    How many minutes does it take for the Earth to pass through 10 longitude?

    asked by Nilkamal on October 5, 2017
  16. science

    The study of the Earth's magnetic field is known as

    asked by joshua` on May 6, 2014
  17. science

    what material is earth and mars made of ?

    asked by kahliyah on January 26, 2011
  18. Biology

    What percentage of animals on earth are vertibrates? 5% 25% 50% 95%

    asked by Lala on May 3, 2016
  19. science

    differences between rotation and revolution of the earth

    asked by angel on June 19, 2018
  20. 1st grade

    how many miles does the earth travles a minute or second ????

    asked by lele on December 1, 2010
  21. physics

    What is the average density of the earth? M = 5.97 x 10^24 kg , R = 6370 km

    asked by angela on October 12, 2010
  22. Science

    How did people shape the Earth? Please answer thanks

    asked by Melea on March 9, 2011
  23. science

    how are mercury and venus similar to earth?

    asked by jada on February 4, 2009
  24. science

    which one of earth's layers has the hottest temperature? why?

    asked by patrisha on January 27, 2015
  25. Astronomy

    How far will Venus be from Earth on February 19, 2014?

    asked by Carol on February 18, 2014
  26. science

    How would life be different without resources taken for under earth's surface?

    asked by Anonymous on March 27, 2013
  27. social studies

    What is the base for the earth's hills and mountains?

    asked by Andy on October 18, 2010
  28. physics

    would an object weigh more or less if there were no atmosphere on earth

    asked by chetan on October 18, 2010
  29. Mechanics

    If an object weighs 39.2 N on Earth, what is its mass?

    asked by Anonymous on July 6, 2010
  30. Physics

    How far above the surface of the earth would you have to be before your weight is reduced by 13.52%?

    asked by Rebecca on November 12, 2015
  31. science

    Why does Mars' appear fainter than Venus, as seen from Earth?

    asked by Sidney on October 10, 2010
  32. social studies

    What are some of the forces that change earth's surface

    asked by robin on September 14, 2007
  33. Saint Michael.

    What was Saint Michael's life on earth like?

    asked by Mike on October 21, 2008
  34. Science

    What is th weight on earth of a girl with a mass of 30 kg?

    asked by Janise on January 6, 2010
  35. math

    Find the weight of a 60 kg astronaut on earth?

    asked by Aviwe on July 6, 2015
  36. Physics

    How can one solve this equation for t? Y = 1.3 + 18.8 t - (g/2) t^2 = 0 (Assume g = 9.8 m/s^2, the value on Earth)

    asked by Anonymous on January 22, 2012
  37. Physics

    In what way does gravity change with distance from Earth?

    asked by Sharvani on October 25, 2012
  38. physics

    A woman has a mass of 64.2 kg. What is her weight on earth?

    asked by Vishnu on October 10, 2008
  39. science

    how are resources brought up from the earth's surface?

    asked by mary on February 8, 2011
  40. science

    do we accelerate as the earth rotates once every 24 hours?

    asked by giggles on May 15, 2011
  41. Geography

    What is exact distance between run and earth

    asked by Harshitha on August 21, 2018
  42. geophysics

    how would you exaplain how and why each of the four moon phases appear to look like they do to us here on earth?

    asked by Yousra on October 31, 2007
  43. science

    How does ozone gas to int get into the earth?

    asked by Kathleen on March 9, 2014
  44. science

    Which of Earth's spheres extends into all others? explain how

    asked by janet on November 11, 2009
  45. Language arts

    What are the verbs in this phrase: The earth has seven continents

    asked by Fabian on May 4, 2010
  46. Science

    Which waves can be used to map the interior of earth?

    asked by Jennifer on April 10, 2008
  47. provine

    How does the tilt of the earth affect climate

    asked by k on February 7, 2010
  48. Earth Science

    How energy flows through the Earth's system?

    asked by John on October 1, 2012
  49. science

    is the weight of an object the same at any point on the earth

    asked by Anonymous on April 18, 2010
  50. science

    what is the outermost layer of earth's surface

    asked by sara on March 29, 2009
  51. Science

    Where will gravity pull you in the center of the earth?

    asked by Buk Lau on October 15, 2014
  52. science

    which main earth system is the water apart of

    asked by day on September 16, 2009
  53. Earth Science

    Can someone five me an example of how carbon cycles through the Earth's system?

    asked by Matt on September 28, 2012
  54. Language Arts (2nd Grade)

    Question: Name 10 Community Things You Can Do To Help The Earth. I Cant Think of Any!! Help

    asked by Ella on September 18, 2009
  55. physics

    What length of pendulum has a period of 0.9 s on Earth?

    asked by Anonymous on November 26, 2012
  56. science

    erthquake would be on earth as _______ would be on venus?

    asked by salman on September 23, 2009
  57. physics

    What length of pendulum has a period of 0.9 s on Earth?

    asked by Anonymous on November 26, 2012
  58. space

    what is the difference between the atmosphere on earth and venus

    asked by Scott on January 4, 2011
  59. science

    do you know any enviromentally friendly products, and why they are better for the earth?

    asked by katy on April 23, 2009
  60. Earth Science

    How energy flows through the Earth's system.

    asked by Jacob on September 30, 2012
  61. science

    an earhquake would be on earth as ______ would be on venus?

    asked by salman on September 24, 2009
  62. eath science

    is moon a source of earth's energy?

    asked by Jacob on September 30, 2012
  63. Physics 1 - Mechanics

    You throw a rock with an initial horizontal velocity and it hits the ground at x meters away from your feet. What if: (a) You throw the same stone with the same initial conditions but instead you do this on a another planet with a mass 4 times the mass of

    asked by Alex on October 14, 2011
  64. pre-algebra

    A) light travels at approximately 186,000 miles per second. approximately how far will it travel in 1 minute? express your answer in scientific notation B) the sun is approximately 93,000,000 miles from the earth. about how long does it take light to

    asked by Extra homework on November 14, 2008
  65. science

    I need to know about the wind patterns, tides/high and low,or upwelling for the north sea,irish sea,and the bay of biscay Thank you for using the Jiskha Homework Help Forum. Here is what I find: 1.

    asked by jamie on March 14, 2007
  66. World History

    Which accurately describes the contributions of Evangelista Torricelli to the Scientific Revolution? He created a sustained vacuum and discovered the principle of a barometer. He discovered calculus after his university closed due to a plague outbreak. He

    asked by Rylee on December 1, 2017
  67. physics

    A canoe has a velocity of 0.39 southeast relative to the earth. The canoe is on a river that is flowing 0.59 east relative to the earth. Find the magnitude of the velocity of the canoe relative to the river. Find the direction of the velocity of the canoe

    asked by oguz on October 17, 2011
  68. Physics

    The sun goes around the center of our galaxy once every 250 million years. The sun is also 2.55×10^20 m from the center of our galaxy. What is the acceleration of our sun towards the center of the galaxy in m/s^2? Details and assumptions You may assume

    asked by Jack on March 22, 2013
  69. physics (Newton's Law of gravitation)

    I need help with this question until the end if you can, please. Thank you. A neutron star and a black hole are 2.400e+12 m from each other at a certain point in their orbit. The neutron star has a mass of 2.78×10^30 kg and the black hole has a mass of

    asked by Kathy PLEASE HELP on April 23, 2013
  70. Orbital Mechanics

    Some help with this exercise please. If you could give an explanation and not only the answers it would be great!!! Besides the 3-2-1 rotation sequence, another very common sequence in spacecraft applications is the 3-1-3 rotation sequence in which the z

    asked by ntae001 on January 23, 2015

    A beam of electrons is moving in a horizontal circle in a uniform magnetic field that is directed downward. The speed of the electrons is 1.0*10^7 m/s and the magnitude of themagnetic field is 1.0*10^-3 T. As seen from above, are the electrons moving

    asked by Trace on November 30, 2010
  72. Math

    Could someone please check my work on these word problems? My solutions just don't seem right, could you please let me know where I may have messed up. Many people know that the weight of an object varies on different planets, but did you know that the

    asked by ASD on September 19, 2010
  73. physics

    Careful measurements of local variations in the acceleration due to gravity can reveal the locations of oil deposits. Assume that the Earth is a uniform sphere of radius 6370 km and density 5500 kg/m3, except that there is a spherical region of radius 1.7

    asked by please on March 6, 2012
  74. English

    Are the following sentences possible? Thank you very much. 1) He shot me in the leg. 2) He showed me the way to the supermarket. 3) He likes shooting. 4) He shouted at him. 5) I always show my gift card to the check-out clerk so that I can get a discount

    asked by Franco on January 26, 2011
  75. science

    how dose oceanography effect the planet earth

    asked by carolina on September 7, 2008
  76. Physics

    weightlessness experienced while orbiting the earth is due to ?

    asked by Ajai on November 4, 2012
  77. science

    1. In the illustration below, the darkened part of the Earth is experiencing-- *

    asked by iPhone x max on November 2, 2018
  78. science

    what layer of the earth did the chile miners reach

    asked by theresa on December 5, 2010
  79. earth

    If you had a mole of M&M's, how many times could you cover the surface of the earth ?

    asked by Anonymous on November 4, 2012
  80. social studies

    name the five oceans of the Earth according to size, largest to smallest.

    asked by Elenny on September 14, 2008
  81. Science

    what is the process responsible for the production of water on earth

    asked by Anonymous on November 4, 2007
  82. Science

    What does the Space Shuttle use to land when returning to Earth ?

    asked by Alisha on April 14, 2010
  83. science

    At which elevation would you be above one half of the mass of Earth's atmosphere?

    asked by betina on April 11, 2011
  84. climate change

    What would our climate be like if the earth was shaped like a cube instead of a sphere? thanks

    asked by Help me please on October 13, 2011
  85. Geology

    How does the geothermal gradient vary with depth within the Earth?

    asked by Zukii on January 23, 2011
  86. Opinion

    Which class would be better(easier) to take Earth Science or Astronomy?

    asked by Marie on March 22, 2012
  87. Physics

    If you weighed 112 N on the Moon where g=1.6N/kg, how much would you weigh on Earth?

    asked by Marty on March 5, 2008
  88. Science

    How would day and night be different if Earth's axis were not tilted?

    asked by Marcus on March 7, 2008
  89. Earth Science

    What is the atmosphere's role in the exchange of gases on Earth?

    asked by Victoria on June 16, 2015
  90. Science

    What is the atmosphere's role in the exchange of gases on Earth?

    asked by Victoria on June 16, 2015
  91. science

    what would happen if inertia was the only force being acting on the earth?

    asked by Alex on January 12, 2011
  92. Science

    Express mass of the Earth in unit of M. Take ME = 6 x 1024kg.

    asked by Sanjay on December 3, 2012
  93. science

    Why are the oldest rocks on earth on continental crusts?

    asked by jen on October 22, 2017
  94. Life science

    That portion of the earth in which living organisms are found?

    asked by General on January 22, 2011
  95. Science

    If the earth's rotation slowed down, how would that affect the winds in the US?

    asked by Anonymous on December 7, 2012
  96. science

    desciibe how solar wind can affect the earth

    asked by brittany mabry on January 17, 2008
  97. Physics

    The average radius of the earth is 6.38*10^6m. Is the diameter just twice that or 12.8*10^6m. The circumference is 6.28(6.38*10^6)=40.1*10^6m

    asked by Charles on February 8, 2008
  98. geology

    I need ideas for paper for using earth's resources responsibly

    asked by Anonymous on August 5, 2011
  99. science

    How does radiation from the Sun affect Earth’s atmosphere?

    asked by T on March 28, 2018
  100. physics

    calculate the value of g at a height of 3600 km above the surface of the earth?

    asked by aish on December 12, 2012