Earths forces

4,358 results
  1. Social Studies

    1. what happened initially when the un forces went to support south Korea? A. North Korean forces were quickly overwhelmed. B. UN forces were outnumbered and poorly supplied. C. The fighting escalated beyond the Korean borders D. South Korea did not want

  2. Chemistry

    Which type of intermolecular forces would be expected in a sample of F2 gas? a. London forces, dipole interactions, and ionic interactions b. dipole interactions c. London forces d. London forces and dipole interactions I believe C is the correct answer.

  3. Science

    Lesson 10: Introduction to Planet Earth Unit Test Science 6 B, i have my answers i need someone to check them please!! and thanks you. connexus academy answers only pls thanks. 1. which of earths spheres contains most of its mass A. atmosphere

  4. physics

    please check: Conductors can be charged by ___, while insulators cannot. a. grounding b. induction c. polarization d. contact D Which of the following is not true for both gravitational and electric forces? a. the inverse square distance law applies b.

  5. Chemistry

    Which is the strongest interparticle force present in a sample of H3PO4? ion―dipole forces dipole―induced dipole forces hydrogen bonding forces ionic bonding forces ion―induced dipole forces dispersion forces dipole―dipole forces

  6. Science Help Plz

    which of the following statements about earths atmosphere is true? a. earths atmosphere contains 78 percent water vapor which is essential to life b. earhts atmoshpere contains 21 percent oxygen c. earths atmosphere contains carbon dioxide which all life

  7. physics

    An object act upon by two forces 5N and 12N. calculate the resultant Of the two forces if the two forces act perpendicular to each other, if the two forces act at angle 40 degree to each other, if the two forces act at an angle 125 degree to each other

  8. Science

    In the picture below, a boy is trying to pull a dog on a leash, but the dog and the boy are moving in the same direction. Which of the following best describes the forces in this situation? * 1 point A The forces are balanced, and the net force is zero. B

  9. Science

    What does a model of the rock cycle show? the amount of earths carbon is constant ←←?? the amount of earths carbon increases the amount of earths carbon decreases the amount of earths carbon cannot be determined

  10. science

    erosion and weathering are examples of which type of forces ? a) constructive forces b) destructive forces c) gravitational forces d) inertia-related forces

  11. Chemistry(Please check)

    1) For a series of small molecules of comparable molecular mass, which of the following choices lists the intermolecular forces in the correct increasing order? a) dipole-dipole forces < London forces < hydrogen bonds b) hydrogen bonds < dipole-dipole

  12. Science

    Which of the following statements is true about Earth's magnetic poles? A.They are located at earths geographic poles B.They are the areas where Earths magnetic field is weakest. C. They are the areas where Earths magneic field is strongest. D. Earth has

  13. science/chemistry

    Dr Bob Although helium atoms do not combine to form He2 molecules. is it true to say that He atoms are weakly attracted to one another from London dispersion forces (induced dipole forces) or is there another force at play? It cant be Hydrogen

  14. Chemistry

    Discuss the types of intermolecular forces acting in the liquid state of each of the following substances. (Select all that apply.) 1. CH3CH2CH2CH2OH a) dipole-dipole forces b) London dispersion forces c) hydrogen bonding 2. CH3OH a) dipole-dipole forces

  15. Physics

    1)Which of the following statements is true about electric forces? A)electric forces cause objects to only attract each other. B)electric forces cause objects to only repel each other C)electric forces cause objects to repel or attract each other

  16. physics

    Two forces act on an object. The magnitude of the net force acting on the object a. equals the sum of the magnitude of the two forces b. equals the difference in the magnitudes of the two forces c. equals the average of the two forces d. cannot be

  17. science

    which of the following statements best describes the biosphere? a) it is a mixture of gases that contain dust particles b)it contains earths metal core c) it contains all of earths water d) it it the part of earth that contains living organisms is it d ?

  18. Science

    What is most responsible for any movement in the Earth's rock plates? A. Divergent plate boundaries B.convection currents C. Convergent plate boundaries

  19. Algebra 1

    Earth has a radius of about 6.4 x 10 to the 6th power m. Approximate the surface area of earth using the formula for the surface area is a sphere, S = 4 pi r squared. Earths surface is about 70 percent water. About how many square meters of earths surface

  20. Physics

    Find the size of the net force produced by a 4 N and a 14 N force in each of the following arrangements. (a) The forces act in the same direction. N (b) The forces act in opposite directions. N (c) The forces act at right angles to each other. N

  21. Science

    Scientists believe that the (Milankovitch cycles, tilt of the earths axis, sea levels, low temperature) explain why Earth’s (climate has, tilt of earths axis has, low temperatures have, sea levels have) fluctuated between glacial periods and interglacial

  22. Science

    Joseph created a clay model of mountains. He formed the rock layers into a zigzag shape to create the mountain. What causes mountains to form this shape? A. Continental plate uplift B. A normal fault C. A transform fault

  23. physics

    a body is under of 2 forces 7n and 10n find the resultant of 2 forces if (a)the forces are parallel and act in thesame direction (b)the forces are parallel and act in opposite direction(c)the two forces are inclined and act at an angle of 60 degree to each

  24. Physics

    Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F1 = 2.0 N, F2 = 17.0 N and F3 = 15.0 N, where N is the standard unit of force, what is

  25. Vectors

    Three forces of 5N, 8N, and 10N act from the same corner of a rectangular solid along its three edges. a) Calculate the magnitude of the equilibrant of these three forces. b) Determine the angle that the equilibrant makes with each of the three forces.

  26. geology(science) i still dont understand

    how the earths four subsystems interact with one another. In your response, identify one type of resource from each subsystem on which people depend. all i have so far is this.... the earths 4 subsytems are the following lithosphere, hydrosphere,

  27. Physics

    Two forces of magnitudes 6.0 N and 4.0 N act on a 3.2 kg body. What is the acceleration produced when these forces are acting in the same direction? What is the acceleration produced when these forces are oppositely directed?

  28. Criminology

    Which traits are shared by most task forces? There may be more than one correct answer. Be sure to select all that apply. ANSWER: - task forces work across jurisdictions - task forces require different kinds of expertise

  29. science

    erosion and weathering are examples of which types of force? A) constructive forces B) destructive forces C) gravitational forces***** D) inertia related forces I THINK ITS C

  30. physics

    a body i under the action of two forces 7N and 10N find the resultant of the two forces if the forces are parallel and act in thesame direction

  31. CHEMISTRY

    although helium atoms do not combine to form He2 molecules is it fair to say that London dispersion forces (induced dipole forces)are what attract He atoms weakly to one another? The other choices are dipole-induced dipole forces Hydrogen bonding

  32. Physics

    Plz, i need the workings. An object is acted upon by two forces of 5N and 12N. Calculate the resultant of two forces if the forces acting perpendicular to each other

  33. Physic

    The free-body diagram in the drawing shows the forces that act on a thin rod. The three forces are drawn to scale and lie in the plane of the screen. Are these forces sufficient to keep the rod in equilibrium, or are additional forces necessary f3 ' ' ' f1

  34. Math

    Earth orbits the sun in an elliptical pattern. the equation of earths path is (x+2.5)/22350.25 + y^2/22344=1 where the measurements represent millions of kilometers. The sun is located at the focus (0,0). In january, earth id located at one vertices which

  35. science

    which of the following statements best describes the biosphere? a) it is a mixture of gases that contain dust particles b)it contains earths metal core c) it contains all of earths water d) it it the part of earth that contains living organisms is it d ?

  36. Math

    The earth is approximately a sphere. It's diameter is about 12730km. Water covers approximately 66% of the earths surface. How many square kilometers of land covers the earths?

  37. Physics

    An object is moving with constant velocity -->v Which situation is impossible in such a circumstance? 1. One force acts on the object. 2. Three forces act on the object. 3. No forces act on the object. 4. Two forces act on the object. 5. Four forces act on

  38. Physics

    Two forces are the only forces acting on a 7.8 kg object which moves with an accelera- tion of 4.5 m/s2 in the positive y direction. One of the forces acts in the positive x direc- tion and has a magnitude of 14 N. What is the magnitude of the other force

  39. Science

    Which of the following concepts earths plates to move continuously a glacial deposit earths magnetic field convection in the earths mantle radiation in the earths core

  40. Physics

    Calculate the force of the Earths gravity on a spacecraft 12,800 km (2 earth radii) above the Earths surface if its mass is 1350 kg?

  41. science

    erosion and weathering are examples of which types of forces? A constructive forces B destructive forces***** C gravitational forces D inertia-related forces please check my answer

  42. science

    Which of the following best describes constructive forces? A. forces that build up, or create, landmasses* B. forces that wear down, or destroy, landmasses C. forces that change the appearance of weathered rock D. forces that are constant

  43. science

    Which of the following best describes constructive forces? A. forces that build up, or create, landmasses B. forces that wear down, or destroy, landmasses C. forces that change the appearance of weathered rock D. forces that are constant

  44. science

    which of the following is true about Earths atmosphere? a)the atmosphere contains 78 percent water vapor b)the atmosphere contains 21 percent oxygen c)the atmosphere allows radiation from the sun to pass through and warm Earths surface

  45. physics

    An earthquake wave has a wave length of 523m and travels with a speed of 4.6km through a portiin of Earths crust. a) what is its frequency? b) if it travels into a different portion of Earths crust, where its speed is 7.5km/s,what is its new wavelength?

  46. physics

    The free-body diagram in the drawing shows the forces that act on a thin rod. The three forces are drawn to scale and lie in the plane of the screen. Are these forces sufficient to keep the rod in equilibrium, or are additional forces necessary I assume

  47. Math

    Earth orbits the sun in an elliptical pattern. the equation of earths path is (x+2.5)^2/22350.25 + y^2/22344=1 where the measurements represent millions of kilometers. The sun is located at the focus (0,0). In january, earth id located at one vertices

  48. Chemistry

    What is the strongest of the intermolecular forces http://wine1.sb.fsu.edu/chm1045/notes/Forces/intermol/Forces02.htm The strongest is electrostatic forces between ions. But I don't call electrostatic forces between ions "intermolecular forces." They are

  49. chemistry

    Explain how dispersion forces, dipole-dipole forces, and hydrogen bonds (intermolecular forces) affect the 2 states of matter using phase changes and heating curves. What is the effect on vapor pressure with dispersion forces, dipole-dipole forces, and

  50. Chemistry

    Explain the following phenomena in terms of intermolecular forces. Determine the major type of forces between the molecules. a) You can't clean grease off you hand with water only b) Pancake syrup is more dense than olive oil. Please provide the structure

  51. science

    how do you figure out intermolecular forces in a molecule? 1. You learn (memorize) the types of forces and what causes them. 2. You go through example molecules with those forces. 3. You learn to recognize types of molecules (fats, covalent long chain,

  52. History

    How did the Assyrian empire dominate Mesopotamia? A. It dominated Mesopotamia through its use of archery forces and stone weapons. B. It dominated Mesopotamia through its use of cavalry forces and iron weapons. C. It dominated Mesopotamia through its use

  53. science

    plz help I am in connections academy science 7B unit 1 lesson 8 I am very confused 1. which of earths spheres contains most of its mass? A. atmosphere B. hydrosphere C. geosphere D. biosphere 2. Erosion and weathering are examples of which types of forces

  54. Science

    Earths forces

  55. physics

    with earths mass 6 x 10^24 kg and radius6.38 x 10^6, how does the inverse-square law show that in space shuttle territory, 200 km above earths surface, the force of gravity is about 94% that at Earths surface

  56. SCIENCE HELP

    a bristlecone pine in the white house usually adds a new ring when which of the following occurs? a. earths daily rotation is complete b. the full moon causes a monthly high tide c. the new moon is visible from earths surface d. earths northern hemisphere

  57. science

    Earths mass is 6 x 10^24kg and its radius is 6.38 x 10^6m (6380 km ). Use the inverse-square law to show that in space-shuttle territory, 200 km above the earths surface the force of gravity on a shuttle is about 94% of that at the earths surface.

  58. Physics

    determine the distance from earths centre where the force of gravity acting on a space probe is only 11% of the force acting on the same probe at earths surface. Express your answer in terms of earths radius, rE

  59. maths 3 advanced

    an experimental satelite is placed into a polar ellipical orbit above the earth. both its apogee and perigee are above the equator and the earths centre is the focus of the ellipical orbit. the earths radius is taken ar 6000km. the furthest point of the

  60. Physics

    The mass of an object at the earths surface is 100 kg. Calculate the force of gravity of the same mass if it is moved a distance of 4 radii from the earths centre.

  61. Phiscal science

    gravitational, electromagnetic, and nuclear forces. 1. Why are these forces often called fundamental or basic forces? 2. Where are these forces found? 3. How are other forces related to them?

  62. Physics

    The earths mass is m=5.98*10^24 kg and physics students masss is 70 kg. Knowing that the gravitational force between the student and the earth is 392 N of force, what is the distance between the student and the Earths center?

  63. Physics

    A body is under action of 2 forces ,7N and 10N . Find the resultant of the 2 forces, if (a)the forces are parallel and act in the same direction (b) the forces are parallel and act in the opposite direction (c) the forces are inclined at an angle of

  64. Physical Science

    What are the 4 nuclear forces? Out of the 4 which one is the strongest and which one is the weakest? Thanks http://hyperphysics.phy-astr.gsu.edu/hbase/forces/funfor.html THANK YOU As a side note, these are not nuclear forces. They are the four fundamental

  65. Physics

    A satellite orbits Earth at a distance of 3rearth above Earth's surface. (Earth mass equals 5.97 X 10^24, earths equatorial radius equals 6.38 X 10^6) How many Earth radii is the satellite form Earths center?

  66. Science

    How can scientists use diaminds to Understand Conditions Inside earth. A. they use diaminds to recreate the chemical composition of earths inner core B. they can use diamonds to observe how seismic waves travel through different materials** C. Can you use

  67. Earth science

    How can scientists use diaminds to Understand Conditions Inside earth. A. they use diaminds to recreate the chemical composition of earths inner core B. they can use diamonds to observe how seismic waves travel through different materials C. Can you use

  68. government

    In my class I had to choose a major national issue and identify the forces in a political party that help drive the party to its position on the issue. I chose education and the Democratic party. The driving forces part is where I am stumped. I figured the

  69. geology(science) does this sound ok?

    write a 200-300 word description of how these four subsystems interact with one another. In your response, identify one type of resource from each subsystem on which people depend. this is what i said..... The earths 4 subsystems are the following

  70. physics

    Consider a 1kg mass at rest at the equator.Because of the earths rotation , the mass experiences a centripetal acceleration. a)Draw free body diagram of mass b)Find centripetal force acting in the mass c)Compare apparent weight and true weight d)what

  71. islam

    a.What does “seven earths” as implied in verse 12 surah at-Talaq actually mean? b.Why does the Quran use only a singular noun(al-ardhu) when describing the earth(or seven earths) in this case whereas when describing seven heavens a plural noun

  72. islam

    a.What does “seven earths” as implied in verse 12 surah at-Talaq actually mean? b.Why does the Quran use only a singular noun(al-ardhu) when describing the earth(or seven earths) in this case whereas when describing seven heavens a plural noun

  73. Physics

    A particle is acted on by the forces as shown in fig resolve the forces horizontally and vertically to find the magnitude of the forces?

  74. Physics

    A body is under the actions of two forces 7N and 10N.find results of the two forces if: a)The two forces are inclined at an angle of 60 degree to each other b)The two forces are inclined at an angle of 160 degree c)The two forces act at 90 degree to each

  75. math

    geologists estimate that earths temperature rises about 10 degrees celsius for every kilometer k below earths surface. suppose it is 50 degrees celsius on the surface of the earth. What is the formula for the temperature t in degrees celsius at a dept of k

  76. physics

    a body is under of 2 forces 7n and 10n find the resultant of 2 forces if (a)the forces are parallel and act in thesame direction (b)the forces are parallel and act in opposite direction(c)the two forces are inclined and act at an angle of 60 degree to each

  77. Physics

    I studied the equation of time recently and understand the Earths keplerian orbit is responsible for it. I understand the keplerian orbit described the Earths elliptical path and it was this alone that created the equation of time. I have just read that

  78. Science

    So I’m awful at summarizing and I came up with the really long answer and I know I need it shorter because it’s definitely not gonna fit on two lines. Please help! Large amounts of heat or transferred to earths mantle from earths core and the mantle

  79. american history

    1. In 1975, two years after U.S. forces had pulled out of Vietnam, the a. non-Communist forces defeated the Communists. b. Cambodian forces took over most of Vietnam. c. Laotian forces took over most of Vietnam. d. Communist forces took over South Vietnam.

  80. math

    A temperature measurement from earths stratosphere is taken as -70 degree Fahrenheit. The temperature on the earths surface below is found to be 41 degrees Fahrenheit. Find the difference between the surface temperature reading and the stratosphere

  81. PHYSICS Gr.11

    Objects which are at rest or moving at constant velocity, may have forces acting on them. However the forces are said to be balanced. QUESTION: Which special force is zero, when the forces are balanced? thank you :)

  82. physics electromagnetism

    Two long parallel vertical wires 0.3m apart are. ' placed east-west of one another. The current in the westerly wire is 30A and on the other 20A. The horizontal component of the earths magnetic flux density is 2*10^-5. Find the force per unit length on

  83. Porter model

    Identify the competitive forces in Porter’s model. What affect might these forces have on a business? What can a business do to respond to these forces?

  84. Religion-Islam-Al-Quran

    There seems to be no one here who is familiar enough with the Quran to answer you at this time. You are certainly free to use any search engine, but be aware that you will find conflicting and confusing results, as with most online searches.

  85. mathematics

    the greatest and the least resultants of two forces acting on a body are 35kN and 5kN respectively,determine the magnitude of the forces,what would be the angle between these forces if the magnitude of the resultant is stated to be 5kN

  86. science grade 6

    why are springs good forces measurers? my answer: springs are good forces measure because , when forces are applied , they stretch and spring back into shape evenly.😊😊😊

  87. Business

    Prepare a 1,050-1,750-word (3 to 5 pages) paper in which you analyze at least seven of the forces and trends from the list in the table shown above. Your analysis must include economic as well as legal and regulatory forces. The other five are your

  88. Physics

    Two forces, 364 N at 19° and 253 N at 32° are applied to a car in an effort to accelerate it. The resultant forces of these two forces is 558.72 N. What is the direction of the resultant force (in relation to forward, with counterclockwise considered

  89. calculus

    find the resultant of each pair of forces acting on an object a) forces of 7N east and 12N west b) forces of 7N east and 12N north

  90. Civics

    17. After General Howe's forces defeated the Americans at Brooklyn Heights and White Plains, Washington's strategy called for A. drawing British forces inland. B. retreating to the south. C. surrounding the British and forcing them into one location. D.

  91. Physics

    Can someone walk me through how to work this? A block is being pushed up a frictionless incline by an applied horizontal force, F=12.7N. (The angle is θ = 23.80° and the mass is 1.70kg. a) How many forces are acting on the block? b) How many of those

  92. Human Resource

    Familiarize yourself with the major environmental forces facing Canadian business by reading pages 6 to 19 of your textbook. The forces are: economic, demographic, technological, cultural, and legal. Watch the following recruitment ads for IBM: A: Go to

  93. Physics

    I have two I need help with! 1. An airplane is flying in a horizontal flight level at constant velocity, heading due east. If the weight of the plane is 2.6 x 10^4 N, what is the net force on the plane? a)-2.6x10^4 N b)2.6x10^4 N c)0.0 N d) that due to

  94. physics

    Two forces are the only forces acting on a 2.8 kg object which moves with an accelera- tion of 2.5 m/s2 in the positive y direction. One of the forces acts in the positive x direc- tion and has a magnitude of 12 N. What is the magnitude of the other force

  95. History

    How did the Assyrian empire dominate Mesopotamia? A. It dominated Mesopotamia through its use of archery forces and stone weapons. B. It dominated Mesopotamia through its use of cavalry forces and iron weapons. C. It dominated Mesopotamia through its use

  96. Science

    Why is earths temperature just right for life

  97. physics

    thus far in the course we have ignored that on the earths surface an object must have a slightly unbalanced force to rotate with the earth, pretending that the normal force precisely balances the objects weight. A student with a mass of 65.0kg stands at

  98. social studies

    When France gave up control of Vietnam in 1954, which group gained control of North Vietnam and which group took charge of South Vietnam? 1 Cambodian forces gained control of North Vietnam and Laotian forces took charge of South Vietnam 2 Communist forces

  99. Science

    two people pish a box from the oppisite directions, but the box does not move. Which statement best explains this result? (A) the box pushes back on the people. (B) balanced forces do not cause motion (C) Push forces do not cause motion (D) the forces have

  100. Science

    How does earths rotation cause day and night?

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