1. Physics

    Two small aluminum spheres, each having mass 2.65×10−2 , are separated by 85.0 . How many electrons would have to be removed from one sphere and added to the other to cause an attractive force between the spheres of magnitude 4.00×104 (roughly four

    asked by Julie on January 31, 2013
  2. science

    I'm doing Science right now. I have the answers down for most of them but I'm not sure if I am right..... Can u pls help me and tell me if my answers r right? I suck at science :S 1.A 2.C 3.B 4.D 5.D 6.A 7.? 8.A 9.E 10.C 11.A 12.D 13.C 14.B 15.? 16.? 17.?

    asked by barnyard-gal on April 23, 2018
  3. Pre-Calc

    The CN Tower in Toronto, Canada, is the tallest free-standing structure in North America. A woman on the observation deck, 1150 ft above the ground, wants to determine the distance between two landmarks on the ground below. She observes that the angle

    asked by Susan on November 19, 2015
  4. math

    The CN Tower in Toronto, Canada, is the tallest free-standing structure in North America. A woman on the observation deck, 1150 ft above the ground, wants to determine the distance between two landmarks on the ground below. She observes that the angle

    asked by Anonymous on October 23, 2013
  5. english

    From Brazil to Peru the number of amazon birds in South America is large and varied. Which capitalized word is used as an adjective?

    asked by jorge cuellar on February 28, 2012
  6. History-Civil War

    What was the biggest challenge faced by the federal government at the end of the war in reintergrating the South into the United States of America ?

    asked by Joanne on July 1, 2011
  7. History

    How did the results of the presidential election in 1860 influence South Carolina's decision to secede? there are no choices, it is a short answer. please help :)

    asked by Anon on February 7, 2017
  8. check my answer

    A shortage of what would have devastating consequences for the South during the Civil War? Acanals brivers crailroads*** droads i thinks its railroads am i right???

    asked by the girl that has no friends on February 8, 2016
  9. History

    How did the issue of states' rights influence South Carolina's decision to secede? this is a short answer, so there are no options. please help. thanks in advance :)

    asked by Anon on February 7, 2017
  10. Social Studies

    2. People living in this country, on average, make the least amount of money. a. Angola b. South Africa c. Algeria d. Chad***

    asked by Kaai97 on October 15, 2015
  11. History

    South Vietnam's Diem was a solid supporter of human and civil rights. True****** False I can't remember for sure. Thanks in advance!!!

    asked by Tessa on May 10, 2018
  12. Earth Science

    Using the plate tectonic theory explain the differences between the continental shelves on the east and west coasts of South America.

    asked by Clammyson on January 20, 2011
  13. math

    As South Campus, the student-faculty ration is about 16 to 1. If the 128 students enroll in Statistics 101, how many sections should be offered?

    asked by Kim on March 3, 2013
  14. w.g

    which of the following does south asia not depend upon for energy A)hydroelectric power B)windmills C)imported oil D)**burning wood and coal

    asked by henry on September 24, 2009
  15. Physics

    If Joe rides south on his bicycle in a straight line for 29 min with an average speed of 14.8 km/h, how far has he ridden? Answer in units of km

    asked by alison on October 1, 2013
  16. social studies

    where do most people in south west asia live A.in cities, B.in rural river valleys, C.in the mountains, or D.in the desert interiors

    asked by Hannah on February 25, 2015
  17. Social Studies

    1. what post war industry became more important in south carolina due to new roads? a. tourism b. agriculture c. manufacturing d. mining I think its a. please help as soon as possible

    asked by basketball&batman on April 29, 2015
  18. TRIGONOMETRY

    Because of the wind, a boat sails 4,728 meters in the direction S 47deg29mins W. How far south it goes? How far west has it gone? this is my report..please help me..i tried so hard but i really didn't get it..thanks!

    asked by Winsel on August 6, 2010
  19. Life orientation

    5 ways in which the environmental or human factor that causes ill health,accidents,crises,and disasters within the communities in south africa.

    asked by Foster mathebula on April 28, 2012
  20. Life Orientation

    May you assist me with six ways that the human rights violations influences indivituals groups and the broader South African community

    asked by Esther maluleke on April 20, 2016
  21. HIstory

    By the late 1800s, farmers in the south and Midwest hasn't lost a great deal of their political power. How did this happen?

    asked by 0GGG on November 6, 2017
  22. social studies (NEED HELP QUICK)

    Unstable government holds back economic development most in a. Namibia b. Botswana c. Somalia d. South Africa my answer: d

    asked by anonymous on October 18, 2016
  23. Geography

    I need a detailed map of south america, showing were the Andes Moutains, the Central plains, the Eastern Highlands and the equater.

    asked by Like you'd want to know! on December 14, 2007
  24. Life orientation

    Critically discuss six ways that the human rights violations influences individuals,groups and the broader south African.

    asked by Rollen on April 17, 2016
  25. Life orientation

    Identify and describe one environmental problem that causes ill health,accidents,crises and disasters in any community within South Africa

    asked by Kgomotso on April 14, 2012
  26. economies

    True or False, South Africa was technologically developed country because of its policy of Apartheid and the international economic sanctions.

    asked by me3598 on November 15, 2008
  27. physics

    If Joe rides south on his bicycle in a straight line for 26 min with an average speed of 11.6 km/h, how far has he ridden? Answer in units of km

    asked by joselyne on September 28, 2011
  28. Life Orientation

    Identify one environmental or human factor that causes ill health,accidents,crises and disasters within any community within South Africa.

    asked by Boitumelo on April 12, 2013
  29. social studies

    Reconstruction was a more bitter experience for the south than the the civil war itself.which of the following historical developments best supports the author's point of view?

    asked by Anonymous on February 21, 2016
  30. Math

    Consider an aircraft attempting to fly south at 600km/h encounters a head wind of 200km/h. Calculate its resultant velocity.

    asked by Ezekiel on February 21, 2016
  31. human life

    What are the human and environmental factors that cause ill-health,sickness,trauma,accidents,crises and disasters in South Africa

    asked by Anonymous on April 26, 2011
  32. Modern World Studies

    although developed in the south jazz music has its roots in___ rhythms A) Caribbean B)African***** C)Asian D)European Thanks In advance

    asked by Anonymous on January 31, 2019
  33. life science, maths lit,agric,geography, life orie

    Criticality discuss six way that human Rights violation influence individually, groups and broader south African community

    asked by shaima on April 23, 2016
  34. life orientation

    identify one environmental factors that courses ill health, accidents, crises and disasters with your community (south africa)

    asked by nompumelelo on May 16, 2011
  35. trigonometry

    Julia drives 10km due west of her home. then she heads 15 km south. what is the total distance that she has travelled from his house?

    asked by Anonymous on January 8, 2018
  36. Social studies

    1. what post war industry became more important in south carolina due to new roads? a. tourism* b. agriculture c. manufacturing d. mining

    asked by what on April 30, 2014
  37. science

    How did the homo erectus travel from Africa to South America? Any information someone might have on this would be helpful and extra info is greatly appreciated!! Thanks

    asked by Abby on May 22, 2008
  38. Life orientation

    Discuss six ways that the heman rights violations influences individuals groups and the broader south african community

    asked by Yvonne on April 21, 2016
  39. PHYSICS

    IF JOE RIDES SOUTH ON HIS BIKE IN A STRAIGHT LINE FORE 15 MIN WITH AN AVERAGE SPEED OF 12.5KM/H, HOW FAR HAS HE RIDDEN?

    asked by Susie on September 5, 2007
  40. Life orientation

    Identify and describe 3 environmental hazards that cause ill health, crises, and or disasters in any other community within South Africa and globally

    asked by Lerato on April 27, 2013
  41. LIfe orientation

    Identify and describe one environmental problem that causes ill health, accident,crises,and disasters with in south africa or globally (5)

    asked by Bongani on April 27, 2012
  42. Social Studies! :D

    Hi! i need help on my quiz can you help me? thanks! The question is 4. Which of the four major regions of the united states was settled last by U.S citizens? A. Northeast B. South C. West D. Midwest Please help me! Thanks! :D

    asked by O_O on February 27, 2018
  43. Algebra1

    Please let me know if these are correct. 1. Find: 10% of 30 3 2. Find: 10% of 100 10 3. Find: 20% of 50 10 4. Find: 20% of 100 20 5. Find: 50% of 50 25 6. Find: 150% of 300 450 7. Find: 15% of 56 8.4 8. Find: 27% of 92 24.84 9. Find: 32.8% of 106 34.768

    asked by y912f on June 10, 2010
  44. physics

    A man wished to travel due north in order to cross river 5kilometer wide flowing due east at 2kilometer per hour. If he can roll at 9kilometer per hour in still water, find 1. The direction in which he must head his boat in order to get to his destination

    asked by ayomide on June 8, 2015
  45. Chemistry

    Calculate the standard reaction Gibbs free energy for the following cell reactions: a.)3Cr3+(aq) + Bi(s)= 3Cr2+(aq) + Bi3+(aq) with Ecell=-.61V b.)Mg(s) + 2H20(l)=Mg2+(aq)+H2(g)+2OH-(aq) with Ecell=2.36 V I know the formula. I just need help figuring out n

    asked by Anonymous on February 27, 2014
  46. social studies(updated answers)---Mrs.Sue

    1.A 2.C 3.A 6.D 9.B 1. why do most people live in the western part of colombia? A. to enjoy the cooler climate of the mountains B. to be closer to the border with venezuela C. to live along the pacific coast D. to benefit from the country's lush rain

    asked by Kayla on March 17, 2014
  47. Physics

    Relative to the center of the Earth, the position of the Moon can be approximated by (t) = r [cos (ωt) + sin (ωt) ], where r = 3.84 108 m and ω = 2.46 10-6 radians/s. (a) Find the magnitude and direction of the Moon's average velocity between t = 0 and

    asked by Anmol on October 15, 2011
  48. Physics

    A velocity selector is built with a magnetic field of magnitude 5.2 T and an electric field of strength 4.6 × 10 ^4 N/C. The directions of the two fields are perpendicular to each other. At what speed will electrons pass through the selector without

    asked by john on February 13, 2019
  49. AP Chemistry

    The Lewis structure of PF3 shows that the central phosphorus atom has __________ nonbonding and __________ bonding electron pairs. Is the answer 1, 3 Is it 1 because it asked for PAIRS- so there are two electrons not bonded- so one pair?

    asked by Anon on January 13, 2013
  50. chemistry

    Atomic sodium is studied by photoelectron spectroscopy. What is the maximum wavelength of the incident radiation that will ionize the most weakly held electrons in sodium and scatter them so that their de Broglie wavelength measures 3.091e-10 m?

    asked by gluck on March 23, 2013
  51. Chemistry

    what term macthes this description? what about the weakest attractions that exist between molecule answered below last one A covalent bond formed between two different atoms in which the bonding electrons are shared unequally a polar covalent bond.

    asked by Bryan on January 10, 2007
  52. physics

    IF a particular galaxys has a total mass of 10 to the 56 grams and the average star in that galaxy has a mass of 10 to the 35 grams, approximately how many stars are there in that galaxy? Give your answer to the nearest whole power of 10 by entering the

    asked by arias on January 28, 2017
  53. math

    Manyatta Village is 74 km North West of Nyangata Village. Chamwe village is 42 km west of Nyangata. By using an appropriate scale drawing, find the bearing of Chamwe from Manyatta.

    asked by k on April 14, 2018
  54. 8th grade physical science

    what is the charge on carbonate ion? Compared to the number of protons, how many electrons does the carbonate ion have?

    asked by Taylor on November 17, 2008
  55. chemistry

    A lithium nucleus has three protons and three neutrons. How many electrons would it take to equal the mass of a lithium nucleus?

    asked by blahh on September 20, 2010
  56. Physics

    Compare the gravitational force on an 11 kg mass at the surface of the Earth (with radius 6.3 X 10^6 m and mass 6 X 10^24 kg) with that on the surface of the Moon (with mass 1/81.3 ME and radius 0.27 RE). What is the force on the Earth? What is the force

    asked by Maddy on February 20, 2011
  57. Physics

    Compare the gravitational force on an 11 kg mass at the surface of the Earth (with radius 6.3 X 10^6 m and mass 6 X 10^24 kg) with that on the surface of the Moon (with mass 1/81.3 ME and radius 0.27 RE). What is the force on the Earth? What is the force

    asked by Maddy on February 20, 2011
  58. English

    Would down to earth be considered a character trait?

    asked by Lee on November 12, 2014
  59. French

    What is the significance of the scorched- earth policy??

    asked by Anonymous on June 18, 2008
  60. 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 21, 2012
  61. 9th grade

    What is a capillary in Earth science terms?

    asked by Aby on December 22, 2009
  62. physics

    what is the weight of a 3.0 kg object on the surface of the earth?

    asked by Leo on June 17, 2012
  63. science

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

    asked by salman on September 23, 2009
  64. earth

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

    asked by dfaz on May 10, 2011
  65. science

    How do the Sun, Earth, and Moon depend on each other?

    asked by emma on February 11, 2018
  66. Saint Michael.

    What was Saint Michael's life on earth like?

    asked by Mike on October 20, 2008
  67. Geography

    What happens when we move vertically upwards from the earth?

    asked by Mudita on April 21, 2018
  68. Science

    Why is the weight of an object less on the moon than on Earth?

    asked by RD on February 28, 2017
  69. Language arts

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

    asked by Fabian on May 4, 2010
  70. provine

    How does the tilt of the earth affect climate

    asked by k on February 7, 2010
  71. 1st grade

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

    asked by lele on November 30, 2010
  72. Science

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

    asked by Rosy on June 8, 2015
  73. Science

    How is the earth's magnetic field created?

    asked by Kayla on December 12, 2018
  74. science

    why is gravity on earth and not on the moon i need something to help me start it off

    asked by tessa on March 7, 2014
  75. science

    what are the four major fields of earth science? please help and thank you

    asked by needhelp on November 7, 2009
  76. Science

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

    asked by Janise on January 5, 2010
  77. Science

    When are tides in the earth's oceans the highest

    asked by Cj on April 12, 2017
  78. SCIENCE

    IF SOMEONE WHEIGHS 12 KG ON THE MOON SO HOW MUCH HE WILL WEIGH ON THE EARTH

    asked by armaan on May 7, 2013
  79. science

    what are some ways Earth is protected by its atmosphere?

    asked by Eden S. on December 15, 2013
  80. science

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

    asked by Anonymous on March 26, 2013
  81. Competitive exam

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

    asked by Nilkamal on October 4, 2017
  82. Mechanics

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

    asked by Anonymous on June 15, 2010
  83. science

    how much less is the gravity on the lunar surface than on earth?

    asked by jake on November 10, 2011
  84. Earth Science

    Explain the Earth's Cabon Cycle

    asked by Leslie on November 11, 2012
  85. science

    differences between rotation and revolution of the earth

    asked by angel on June 19, 2018
  86. Physics

    what propels a rocket away from the surface of the earth?

    asked by Rose on November 14, 2010
  87. science

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

    asked by patrisha on January 26, 2015
  88. science

    how are mercury and venus similar to earth?

    asked by jada on February 4, 2009
  89. science

    Describe the motions that causes one day on earth

    asked by gg on October 20, 2013
  90. Physics

    what propels a rocket away from the surface of the earth?

    asked by Rose on November 14, 2010
  91. science

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

    asked by katy on April 23, 2009
  92. Geography

    Which of the following causes Earth’s plates to move continuously?

    asked by Michael on January 28, 2019
  93. physics

    what is the mass of a 1000N man on earth?

    asked by april on November 29, 2009
  94. 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
  95. 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
  96. physics

    Why is 9.8 used as g on Earth but nowhere else in the solar system? Explain.

    asked by kasey on May 6, 2010
  97. Earth Science

    How energy flows through the Earth's system.

    asked by Jacob on September 30, 2012
  98. social study

    what five themes do geographers use to study the earth?

    asked by Anonymous on October 8, 2009
  99. science

    what are some items on earth that look similar to the moon?

    asked by Roxy on January 28, 2007
  100. science

    what is believed to be the first living thing on earth?

    asked by joshua on April 28, 2010