Boberto

Newest questions and responses by Boberto
  1. Science

    A physics student stands in an 64th floor. The students weights 810 N. What is his mass and normal force? Mass is 83? normal force is 810?

    asked on February 26, 2017
  2. Science

    2. A cable pulls a 15.0 kg crate at constant speed across a horizontal table.The tension in the cable is 60.0 N. 1. What is the frictional force and normal force?

    asked on February 26, 2017
  3. Science

    1. A truck is traveling 20 m/s to the left and bill is moving at 4 m/s left. If you are in Postion A what velocity do you see bill moving at?

    asked on February 26, 2017
  4. Science

    Air is compressed until a small piece of cotton is ignited. From a standpoint of thermodynamics what is Happening at a molecular level? Energy cant be created of destroyed?

    asked on February 26, 2017
  5. Science

    An object mass m1 falls from a height of h1. a. Write a formula for the velocity of the object just before it stikes the ground in terms of g,m1,and h1. b. Write a formula for the velocity of the object at the half way point in terms of g,m1, and h1.

    asked on February 26, 2017
  6. Science

    1. A ball is thrown 15 m/s at an angle of 60. How high does the ball go? 2. A ball rolls off a table going 8 m/s. If the table is 1.8 m tall, how far away does the ball land?

    asked on February 26, 2017
  7. Science

    A student rides his bike off the roof of the high school horizontally at 8 m/s that is 12.5 m high. 1. How far from the base does the object land? 2. What is his y-direction velocity just before it strikes the ground?

    asked on February 26, 2017
  8. English

    What are some personality and physical characteristics of coyotes?

    asked on December 1, 2016
  9. math

    what is square root of 54 x 3 x i.

    asked on November 30, 2016
  10. Science

    A new geosynchronous satellite needs an orbit of 35.7 km . The mass of the Earth is 5.97x 10^24 Kg and the radius of Earth 6.4 x 10^3 km. The mass of the satellite is 200 Kg. What velocity will it need to achieve that orbit

    asked on November 30, 2016
  11. Science

    A new geosynchronous satellite needs an orbit of 35.7 km . The mass of the Earth is 5.97x 10^24 Kg and the radius of Earth 6.4 x 10^3 km. The mass of the satellite is 200 Kg. What velocity will it need to achieve that orbit?

    asked on November 30, 2016
  12. Science

    The Sun exerts a gravitational force of 3.56 x 10^22 N on Earth. The mass of the Sun is 2.0 x 10^30 kg. The mass of the Earth is 6.0 x 10^24 kg. If we assume the Earth has a circular orbit of 1.5 x 10^11 m, what is the velocity needed for Earth to remain

    asked on November 30, 2016
  13. Spanish

    What does He means in spanish??? I have???

    asked on May 10, 2016
  14. English

    The book thief chapter 1. quotes about death.

    asked on April 27, 2016
  15. chemistry

    Which type of heat transfer is not blocked even by an insulated thermos? radiation ???

    asked on April 24, 2016
  16. World History

    How many Allied soldiers will be involved in the invasion of Japan?

    asked on April 23, 2016
  17. World History

    what was happing to europe when Japan invade China?

    asked on April 23, 2016
  18. World History

    Firebombing of Tokyo. What were the bombers ordered to destroy?

    asked on April 23, 2016
  19. World History

    Firebombing of Tokyo.How were the Allies able to reach Tokyo?

    asked on April 23, 2016
  20. Chemistry

    A type of hea that involves heated fluids, such as liquids or gases, moving and flowing is called?? Convection???

    asked on April 22, 2016
  21. Chemistry

    A type of heat that involves no contact at all would be ?? Radiation

    asked on April 22, 2016
  22. English

    is nationalism capitalized?

    asked on April 17, 2016
  23. World History

    What does the future of genocide look like?

    asked on April 17, 2016
  24. World History

    Who were the leaders in pearl harbor? Isoroku Yamamoto, Chūichi Nagumo , Husband E. Kimmel , Walter Short ??

    asked on April 16, 2016
  25. World History

    Who was fighting in pearl harbor? Japanese-Americans?

    asked on April 16, 2016
  26. World History

    What impact / effect does genocide have on society today?

    asked on April 13, 2016
  27. Geometry

    Find the surface area. sphere: area of great circle = 29.8m^2

    asked on April 12, 2016
  28. Geometry

    The Z company specializes in caring for zebras. They want to make a 3-dimensional "Z" to put in front of their company headquarters. The "Z" is 15 inches thick and the perimeter of the base is 390 inches. What is the lateral surface area of this "Z"? 390 x

    asked on April 11, 2016
  29. World History

    how countrys react to threats for example terrorism,ISIS, Wars?

    asked on April 8, 2016
  30. World History

    How did England and France, and the international community in general, deal with the threat of Hitler’s rise to power and his acts of defiance initially?

    asked on April 8, 2016
  31. World History

    Which famous general warned against the danger of Hitler? ERICH LUDENDORFF?

    asked on April 8, 2016
  32. Chemistry

    Water's unique properties allow it to- a.dissolve aqueous solutions b.dissolve ionic and nonpolar covalent molecules c.dissolve ionic and polar covalent molecules d.dissolve ionic, covalent and metallic molecules is it c, because i know water is polar?

    asked on April 6, 2016
  33. chemistry

    What characteristic of water will remain the same regardless of what may be dissolved in it? a.the ratio of hydrogen to oxygen b.the freezing temperature c.the ability to refract light d.the hydroxide ion concentration i think its a?

    asked on April 6, 2016
  34. chemistry

    Which process(es) affect the speed of dissolution? a.particle size and stirring only* b.stirring only c.particle size, temperature and stirring d.particle size only

    asked on April 6, 2016
  35. chemistry

    When water freezes and becomes solid ice, the hydrogen bonds create a crystal structure and there is fixed space between each water molecule. This causes ice to? a.become more dense than liquid water because it is a solid* b.become less dense than liquid

    asked on April 5, 2016
  36. chemistry

    How many grams of NaC2H3O2 are needed to prepare 350. mL of a 2.75 M solution? i got 79.0 ??

    asked on April 3, 2016
  37. Chemistry

    Water is a great solvent for ionic compounds because of its ??

    asked on April 3, 2016
  38. Geometry

    Ralph wants to put a fence around his rectangular garden. His garden measures 53 feet by 55 feet.The garden has a path around it that is 3 feet wide. How much fencing material does Ralph need to enclose the garden and path?

    asked on April 2, 2016
  39. English

    can you use credible celebrities like Steve jobs or bill gates as an example in a PERSUASIVE essay?

    asked on March 30, 2016
  40. English

    How can you write a great conclusion?

    asked on March 26, 2016
  41. World History

    What act by congress contributed to the world wide spread of the Depression? The Dawes Plan?

    asked on March 25, 2016
  42. World History

    List at least 1 major project undertaken by the WPA. is it roads,buildings,bridges?

    asked on March 25, 2016
  43. English

    Why can learning be bad?

    asked on March 19, 2016
  44. English

    Why do people have stress learning new information?

    asked on March 14, 2016
  45. World History

    Name the engineering marvel which connects the Atlantic Ocean with the Pacific Ocean. Panama Canal?

    asked on February 29, 2016
  46. World History

    How did scientific advancements in Europe contribute to the start of the Industrial Revolution?

    asked on February 29, 2016
  47. World History

    which of the following describes socialism? a.the belief of laissez-faire b.private ownership c.developed in response to the exploitation (taking advantage) of workers

    asked on February 28, 2016
  48. World History

    What role did politics play in the Industrial Revolution?

    asked on February 28, 2016
  49. World History

    These documents(Declartion of the rights of man and the citizen, English bill of rights, Marna carta , declaration of independence) established a system in which: a.The power of a leader came straight from God b. The individual was more important than the

    asked on February 28, 2016
  50. World History

    5.Because of the Industrial Revolution, anyone could attain wealth. This event led to a change in the political development in the newly industrialized nations. This was evident in: a.the rising middle class’s rejection of nationalism

    asked on February 28, 2016
  51. World History

    1.Reliance on secular thinking as opposed to decisions based on religion developed as a result of: a.the Scientific Revolution

    asked on February 28, 2016
  52. Geometry

    Two secants of a circle meet in a point out side to the circle. One Secant has 4 and x. The other Secant is 5 and 4. What will be x?

    asked on February 27, 2016
  53. World History

    1. Which of the following introduces the views of Locke’s thoughts? “Government should leave business alone…” “The royal power is absolute and the prince need render…” “Men are born free and remain free and equal…”

    asked on February 27, 2016
  54. Chemistry

    The world record for a human holding their breath is 11 minutes, but most people can only hold it for a few minutes. If a women holds her breath at the maximum lung capacity (4.2 L), calculate the final pressure in her lungs, if her body temperature is

    asked on February 22, 2016
  55. Chemistry

    At what pressure would 0.150 mole of nitrogen gas at -23.0oC occupy 8.90 L? -23.o0c = 250 K P=(0.150 mol)(8.31 KPA x L/ K x mol)(250 K) = P is this right?

    asked on February 22, 2016
  56. History

    why was hillary clinton so successful?

    asked on February 18, 2016
  57. Spanish

    Is an xbox 360 a toy? my school members are doing a spanish commercial...

    asked on February 16, 2016
  58. Chemistry

    At what pressure would 0.150 mole of nitrogen gas at -23.0^o C occupy 8.90 L ?

    asked on February 15, 2016
  59. english

    what is an example of sonnet?

    asked on February 12, 2016
  60. chemistry

    How the volume of the individual gas particles compared to the distance between each particle?

    asked on February 8, 2016
  61. geometry

    When the vertex of an angle is inside the cricle, you must _____ the arcs and then take _____.

    asked on February 5, 2016
  62. Geometry

    Write the equation of each circle. Center at (-1,8) passes through (9,3)

    asked on February 4, 2016
  63. Chemistry

    If 2.43 grams of aluminum react with excess CuSO4, What is the theoretic yeild of Cu? And then Use the Actucal amount of Cu formed to find percent yield.You have 0.92 mass of copper metal product. 2Al + 3CuSO4 ---> Al2(SO4)3 + 3Cu 2.43 / 27 = 0.09 moles of

    asked on February 4, 2016
  64. World history

    Why were some people not satisfied with guillotine?

    asked on February 3, 2016
  65. World history

    what was the goal of the “Reign of Terror”? Who suffered the most?

    asked on February 3, 2016
  66. world history

    Who was the most well trained and powerful military force in the world during the American Revolution?

    asked on January 31, 2016
  67. chemistry

    If 20 mole of potassium react with an excess of lithium sulfate , how many moles of potassium sulfate can you expect to form. porassium phosphate to potassium sulfate: 20 x 2 kaso4 x 174.259 / 212.267 /2 = 16.4188498448 lithium sulfate to potassium

    asked on January 29, 2016
  68. chemistry

    if 10.3 lithium sulfate react with an abundant amount of potassium phosphate, what mass of lithium phosphate can you expect to isolate? lithium sulfate to lithium phosphate : 10.03 x 3 li3PO4 x 115.79 Lipo4 / 109.94 liSo4 / 3 LiSo4 = 10.9016179159

    asked on January 29, 2016
  69. chemistry

    How much water could you make? blanced equation : 4 C7H5N3O6 + 5 O2 = 6 N2 + 12 CO2 + 10 H2O + 16 C.

    asked on January 29, 2016
  70. english

    Why should you don't live your life in fear of terrorism?

    asked on January 29, 2016
  71. World History

    4 changes that have occured to the original US Constitution?

    asked on January 28, 2016
  72. World History

    What do people mean when they discuss an article 5 convention?

    asked on January 28, 2016
  73. World History

    Where is the power to tax found?

    asked on January 28, 2016
  74. math

    if angle 1 and angle 2 are supplementary angles, then one of them must be acute. Counter exmaple?

    asked on January 28, 2016
  75. Chemistry

    How many moles of oxygen will be produced by 0.27 moles of potassium chlorate? 2 KCLO3 = 3 O2 + 2 KCL 0.27 x 3 O2 / 2KCL = 0.405?

    asked on January 27, 2016
  76. Chemistry

    In which of the examples is there an error in either the name OR the formula? silver(I) nitrate -AgNO3 correct iron(III) oxide - Fe2O3 correct sodium bicarbonate - Na2HCO3 - incorrect. calcium phosphate - CaPO3 in correct. rubidium phosphate - Rb3PO4

    asked on January 26, 2016
  77. chemistry

    If you began with 24 moles of Fe2O3, approximately how many moles of pure iron would be formed as a product?

    asked on January 26, 2016
  78. chemistry

    7.20 moles of C3H8 are burned in a room with excess oxygen gas. How many moles of carbon dioxide are released into the atmosphere during this process ?

    asked on January 26, 2016
  79. World history

    William BlackstoneL I believe in The U.S. and other countries patterned their laws on the laws contained in the commentaries, allowing the U.S. to adopt the english "common law". Correct?

    asked on January 26, 2016
  80. Geometry

    If an TV is 51 inches wide and the height is half the size of the width, what is its screen size to the nearest inch?

    asked on December 29, 2015
  1. Maths

    When a mass extinction happens it would give new species a chance to succeed and grow and plants would dominate the world. As animals/species would overpopulate they would cause the CO2 levels in the air to increase and that it would increase in warming

    posted on February 19, 2018
  2. Maths

    animals or organisms would adapt to an environment that best suits their needs. The world is going to be warmer and hotter due to human acts that it would cause a few species to be extinct every year.

    posted on February 19, 2018
  3. English

    thanks

    posted on December 1, 2016
  4. Science

    i got the answer its 1.325x10^24

    posted on November 30, 2016
  5. Science

    i got the answer

    posted on November 30, 2016
  6. Science

    A string 1.0 m long breaks when its tension is 100 N. What is the greatest speed at which it can be used to whirl a 1.0 kg stone? (Neglect the gravitational pull of the earth on the stone.)

    posted on November 30, 2016
  7. English

    no. i guess i have to read it. thanks

    posted on April 27, 2016
  8. World History

    Operation Downfall was to be a strictly American operation. It called for using the entire Marine Corps, the entire Pacific Navy, elements of the 7th Army Air Force, the 8 Air Force 10th Air Force and the American Far Eastern Air Force. More than 1.5

    posted on April 23, 2016
  9. World History

    ok thanks ms sue

    posted on April 23, 2016
  10. World History

    July 7, 1937

    posted on April 23, 2016
  11. World History

    thanks ms sue

    posted on April 23, 2016
  12. English

    thanks ms sue

    posted on April 17, 2016
  13. World History

    thanks

    posted on April 17, 2016
  14. World History

    thanks

    posted on April 16, 2016
  15. World History

    thanks

    posted on April 13, 2016
  16. World History

    America

    posted on April 13, 2016
  17. World History

    thanks

    posted on April 8, 2016
  18. World History

    how do* countrys react to threats for example terrorism,ISIS, Wars?

    posted on April 8, 2016
  19. World History

    thanks

    posted on April 8, 2016
  20. chemistry

    thanks bob

    posted on April 6, 2016