1. Earth Science

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

    #10 which of the following is an effect of divergent plate movement? a.) glacial activity b.) mountain building d.) canyon erosion e.) sea floor spreading
  3. Physics0

    how to estimate the root mean square speed of hydrogen molecules in the earth's atmosphere in km h^-1? thanks for your help, I'm actually teaching myself physics and that why sometimes I get stuck even with simple questions
  4. Earth/Space Science

    What effect, if any, would you expect a massive forest fire to have on the amount of carbon dioxide in the atmosphere? Explain your answer, please?
  5. Physics

    If a 20 kg object fell to the surgace of the Earth from a height of 30m, what would its final velocity be? (work from the energy standpoint) I know that you said it is F * X and I'm just confused. Can you help me walk through this?
  6. Introduction To Marketing

    Create a pitch to a potential green-product advertiser stating the benefits of advertising in Mother Earth News.
  7. Earth Science

    an evidence is a material or data that can be measured and tested to verify their prediction so wat is the difference to a scientific inquiry plz help and thank you
  8. Astronomy

    Imagine that the Earth's axis were tilted parallel to the ecliptic plan like that of the planet Uranus. Describe how the seasons would be different in this scenario than what we currently experience.
  9. earth

    4th grader needs to make a model of earths layers showing crust, mantle, and core. Any ideas? Where would I find a picture?
  10. a&p

    If an astronaut returned to earth after a 180 day stay in a weightless space station he would have a decrease in bone mass? true or false?
  11. Astronomy

    What is the size, i.e. the radius, of a black hole with a mass equal to that of Earth (MEarth=6×1024kg)? Give your answer to one significant figure.
  12. Environmental Science

    On Earth in the extreme northern and southern latitudes, how does the relationship between GPP and NPP change during an entire year’s time?
  13. physics

    a kangaroo jumps to a vertical height of 2.55m.How long was it in the air before returning to Earth? pleaseee anwser it is due in 1 day!!!!
  14. college

    12.2 ft/sec how many days will it take to complete its journey with the circumference of the earth is 25000 miles. How do i work this problem out don't want the answer just want to know how to solve it!
  15. Science

    Describe the action and reaction force pairs involve when an object falls toward Earth. Ignore the effects of air resistance.
  16. Earth Science

    4.   Ancient cyanobacteria released ______, which assisted in creating the atmosphere as we know it today.  A. oxygen B. lead C. hydrogen D. ore A?
  17. mqth and science early childhood

    ​Children do not need a variety of concrete experiences that enable them to learn the properties of Earth's materials
  18. Physics

    If a 20 kg object fell to the surgace of the Earth froma height of 30 m, what would its final velocity be? (work problem from the stanpoint of linear motion)
  19. Environmental Science

    On Earth in the extreme northern and southern latitudes, how does the relationship between GPP and NPP change during an entire year’s time?
  20. PHYSICS

    A particle with a mass of 2.00x10-16 kg and a charge of 22.0 nC starts from rest, is accelerated by a strong electric field, and is fired from a small source inside a region of uniform constant magnetic field 0.660 T. The velocity of the particle is
  21. Grade 11 math

    A rocket carrying a weather satellite is launched. As it moves through space, the rocket is tracked by two tracking stations located 24 km. apart, beneath the rocket. The 2 tracking stations both lie west of the launching pad. at a specific moment, the
  22. trig pls.. help me

    A rocket carrying a weather satellite is launched. As it moves through space, the rocket is tracked by two tracking stations located 24 km. apart, beneath the rocket. The 2 tracking stations both lie west of the launching pad. at a specific moment, the
  23. Science, please! help!

    1. How does sea-floor spreading occur? a.New materials are being added to the atmosphere. b. Earthquakes break apart the ocean floor. c. Sediments accumulate at the area of spreading. d. Molten material beneath Earth's crust rises to the surface. 2. Which
  24. english check

    Treat the Earth and all that dwell thereon with respect. Remain close to the Great Spirit. Show great respect for your fellow beings. Work together for the benefit of all Mankind. Give assistance and kindness wherever needed. Do what you know to be right.
  25. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential
  26. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential
  27. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential
  28. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential
  29. physics

    A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential
  30. english

    These are the times that try men’s souls: The summer soldier and the sunshine patriot will, in this crisis, shrink from the service of his country; but he that stands it NOW, deserves the love and thanks of man and woman. Tyranny, like hell, is not
  31. physics

    A bike is hanging from a hook in a garage. Consider the following forces. (a) The force of the Earth pulling down on the bike. (b) The force of the bike pulling up on the Earth. (c) The force of the hook pulling up on the bike. (d) The force of the hook
  32. physics

    Astronomers determine masses of distant objects by observing their smaller companions. For example, they can measure the period of a planet orbiting around a distant star, measure the radius of its circular orbit, and then employ Newtonian physics to
  33. physics

    Astronomers determine masses of distant objects by observing their smaller companions. For example, they can measure the period of a planet orbiting around a distant star, measure the radius of its circular orbit, and then employ Newtonian physics to
  34. Physical Science

    The string of a certain yo-yo is 80 cm long and will break when the force on it is 10 N. What is the highest speed the 200 g yo-yo can have when it is being whirled in a circle? Ignore the gravitational pull of the earth on the yo-yo.
  35. Science

    What best explains why carbon is present in so many kinds of molecules? A- It is abundant on earth B- It can form four covalent bonds C- It has valence electrons D- It can become ion I think it is B, however, I am unsure!
  36. Early Childhood Education

    The correct definition of the term aesthetics is A.sensing and gaining beauty and wonder from the environment. B. looking at the earth with a utilitarian purpose in mind. I think it's A. Please help
  37. physics

    At a certain undisclosed place (probably not on Earth) an Atwood's like experiment gives the graph of 1/t2 vs Δm the slope is 3.8 (in 1/(kg s2). One also knows that h=1.3m, total mass =0.8kg and I/r2 = 0.08kg. what is the gravitational acceleration is
  38. earth science

    The point at which the continent stops and the rock of the ocean floor begins is the called the continental A. shelf. B. divide. C. drift. D. slope. is it d ?
  39. physics

    consider an electron near the equator. in which direction does it tend to deflect by the magnetic field of the earth if its velocity is directed a. downward b.northward c.westward d.woutheastward
  40. Social studies. PLS HELP

    19. Byzantines believed that their emperor(1 point ) A. should report to the pope B. represented Jesus Christ on earth C. was immortal D. should be more religious
  41. Physics

    When a solar flare erupts on the surface of the sun, how many minutes after it occurs does its light show up in an astronomer's telescope on earth? I am totally confused..help!
  42. Physical Science

    The string of a certain yo-yo is 80 cm long and will break when the force on it is 10 N. What is the highest speed the 200 g yo-yo can have when it is being whirled in a circle? Ignore the gravitational pull of the earth on the yo-yo.
  43. Earth Science-9 help!!!

    does monroe county produce any of these minerals??? talc zinc garnet gypsum lead magnetite halite titalium. plz help me...
  44. Astronomy/Physics

    I cannot calculate the gravitational force between these two objects. I am confused. Jupiter (R=800 million km, M = 2 x 10 to the 27th power kg and a 100 kg person on earth. Please help!
  45. Earth science

    of the three "local winds" types discussed in the text book, which do you think could be most easily harnessed for the generation of electricity by a huge wind farm?
  46. physics

    The earth's atmosphere extends to a height of nearby 200KM above its surface there many be explosion and noises taking place in the outer space but we do not hear them.why?
  47. Science

    one year ago How many Global Positioning System (GPS) satellites are required to pinpoint your location on Earth’s surface? (1 point) 24 12 3 5 i think it's 4, but 4 is not an option
  48. Incorrect comma usage?-

    This begins with the titan Cronos’ mother, Earth, who encourages her children to overthrow their father, Heaven, because out of dislike, he keeps them locked away. does this look right?
  49. science

    A type of igenous rock forming from the cooling of magma within the earth's crust is called_____. a) intrusive b) sedimentary c) metamorphic d) extrusive e) volcanic a
  50. world Geo

    What part of a map tells the relationship of distanceon the Earth? I'm thinking the answer is the scale,some of the scales shows miles and killometers... I think i am right but I'm not sure of it.
  51. Physics Problem 6.12

    Estimate the acceleration due to gravity at the surface of Europa (one of the moons of Jupiter) given that its mass is and making the assumption that its density is the same as Earth's
  52. The Global Ocean

    Because both the atmosphere and the oceans are fluid, what force is free to deform them? A. The Earth's rotation B. Gravity C. Air pressure D. The wind My answer is c.
  53. earth science

    Most New York State sandstone bedrock was formed in a delta from sand grains deposited, buried, and cemented together by minerals. Explain.
  54. Physics

    How much faster would a person be moving if they stood on top of a 18.2 m high building compared to the ground? Take the period to be one day, and the radius of the earth to be 6400 km?
  55. diffirential calculus

    two points are moving horizontally in space at different heights above the earth. show that the angle of elevation of the line joining them is greater when the distance between them is least.
  56. Science

    Having trouble with the independent and dependent variable in an if then statement. "If root growth is related to gravity, then roots will always turn toward the earth regardless of a seed's orientation."
  57. chem

    the atom of element A has 2 electrons in its highest energy level N. a)what is the special name given to elements in the same gp as A? i answered as alkali earth metal because the valence electron is 2. am i right?
  58. physics

    A hypothetical planet has a radius 1.1 times that of Earth, but has the same mass. What is the acceleration due to gravity near its surface? Express your answer using two significant figures.
  59. science

    1. What was wrong or why do you think people rejected Wegner's idea of continental drift? 2. Explain why some partly molten lava rises toward Earth's surface.
  60. Earth's Dynamic Atmosphere

    What process of air lifting can cause deserts to form? A. Frontal wedging B. Localized convective C. Convergence D. Orographic my naswer is d.
  61. social studies

    TRUE OR FALSE:are river valleys, basins, and coastal plains of east asia among the most sparsely populated places on earth?
  62. Earth science

    In a few sentences, explain how information from paleoglaciation and paleomagnetism support the idea that continental plates have moved over the past several million years.
  63. earth science

    When I bumped the table, the coffee in my cup spilled out. Newton's _____ law explains this reaction. 1st 2nd 3rd
  64. Physics

    To better comprehend the magnitude of the gravitational force between Earth and the moon, pretend gravity is turned off and the pull replaced by the tension in a steel cable need to be?
  65. sicence

    The following elements as alkali, alkaline-earth or transition metals based on their positions in the periodic table: A:) iron , Fe. C:) strontium, Sr B:)potassium, k d:) platinum, Pt
  66. grade 9

    A 40m deep well with radius 3.5m is dug & the earth taken out is evenly spead to from a platform of dimension 28m by 22m.find the heght of the platfoem?
  67. Science Please Check

    Please Check 1. How does nanotechnology help engineers make products for the future? a. By changing a materials atomic structure, it can be made from elements that are easier to obtain.*** b. By changing a material's atomic structure, its physical
  68. Science

    Associate each item in the table with at least one field of science and one area of technology/engineering. Choose from the terms given at the bottom. Automobile aspirin shirt computer pesticide satellite robot atomic bomb vaccination can of soup polyester
  69. English A1 Poem

    All afternoon my brothers and I have worked in the orchard, Digging this hole, laying you into it, carefully packing the soil. Rain blackened the horizon, but cold winds kept it over the Pacific, And the sky above us stayed the dull gray Of an old year
  70. BAA App. Essay Help! (please read!)

    One of my personal achievements has to do with artistic. When I was in the 7th grade I participate in the 2012 Reflections Competition. The theme was "Diversity Means...". I decided to do visual arts. In my art work, I drew a huge earth and on top of the
  71. **WORLD GEOGRAPHY 30**

    Which of the following statements is not true? a) rural settlement is north america is primarily dispersed. b) agglomerated rural settlement is most commong in the world. c) the agglomerated pattern exists in lands colonized by europeans. d) an
  72. Chemistry

    When an electron makes a transition from the n=3 to the n=2 hydrogen atom bohr orbit, the energy difference between these two orbits (3.0x10^-19 J) is given off in a photon of light. The relationship ... between the energy of a photon and its wavelength is
  73. Science

    1) What subatomic particles are located in the nucleus and have no effect on the charge of the atom? a) Protons and neutrons b) Electrons c) Neutrons d) Protons 2) The electron can be found in what location of an atom? a) Orbit b) Center c) Attached to
  74. Science

    Hey everyone I need some omework jelp as you can see.I'm not that well in Science so could you give me some tips? And i would like somr homework help for the following passge and answers. DIRECTIONS Read the paragraph and answer the questions. You can find
  75. PHYSICS

    A ball on a string moves in a vertical circle. When the ball is at its lowest point, the tension in the string is equal to the ball's weight. (i said true..?) A small projectile is launched horizontally 1 m above the surface of a smooth, airless planet,
  76. Physics

    Please help me answer the question below and also show equations and steps of how you came to your answer. Thank you 1. The electron in a hydrogen tom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the
  77. physics

    Please help me answer the question below and also show equations and steps of how you came to your answer. Thank you 1. The electron in a hydrogen tom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the
  78. Social Studies 7R (Letter)

    Please check this letter if it's good and if there any grammar mistakes. My most exalted Monarch - Your Majesty Queen Isabella, I am writing this letter most humbly for you to consider my request for three small ships and a crew so that I may sail west and
  79. Physical Science

    1. In which of the following units is acceleration expressed? *A. Newtons B. Foot-pounds C. Kilograms D. Meters per second squared 2. A stone falls from a ledge and takes 16 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall
  80. College Statistics

    The brightness of sunlight at the earth's surface changes over time depending on whether the earth's atmosphere is more or less clear. Sunlight dimmed between 1960 and 1990. After 1990, air pollution dropped in industrial countries. Did sunlight brighten?
  81. physics

    An object is projected upward from the surface of the earth with an initial speed of 2 km/s. The acceleration of gravity is 9.81 m/s^2. Find the maximum height it reaches. Answer in units of km.
  82. Atmospheric Science

    One of the earliest examples of primitive humans, Australopithecus, lived in Africa between about 4 and 1 million years ago. For what fraction of Earth history have hominids been around?
  83. world geography

    Where on Earth? which of the 12 northern eurasian cities will be the home of your company's newest restaurant? hint: use information from an atlas and al almanac to eliminate all but one city
  84. science

    sedimentary rock is formed from bits and pieces of dirt, clay and sand that have been carried. a) on the earth's crust b) underground c) in rivers and streams d) over mountaintops
  85. Earth Science

    Near shore, larger sand and gravel particles are moved along the ocean bottom by ____. a. deposition b. turbulence c. spits d. density currents
  86. math

    The fastest car on earth a Thrust SSC would win every NASCAR race in America. If it takes 0.5 hours to travel 380 miles, what is its speed?
  87. Intro to Marketing

    My instructor wan me to Create a pitch to a potential green-product advertiser stating the benefits of advertising in Mother Earth News.
  88. math

    Scientists have calculated that the Moon's revolution around Earth is increasing by about .015 s per century. At this rate, how long would it take the length of a month to increase by one full day?
  89. math

    A40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form aplateform of dimension 28m by 22m.find the height of the platform.
  90. Earth Science

    1.   What measurement best describes the results of a scientific experiment regarding distance?  A. 57 miles B. 500 kilograms C. 523 inches D. 51 kilometers      My answer is D. Am I correct?   
  91. Science

    Is the answer D? Thank you The earliest atmosphere of Earth is not believed to have contained oxygen. Which cellular component would not have been useful at that time? A) chloroplast B) nucleus C) plasma membrane D) mitochondrion
  92. Physics

    Jill and her friends have built a small rocket that soon after lift-off reaches a speed of 900 m/s How high above the Earth can it rise? Ignore air friction. h=? m
  93. Health

    Which profession should a person who suffers from chronic asthma probably stay away from? A. Criminal attorney <<<<< B. Earth science teacher C. Grocery store manager D. veterinarian.
  94. science

    The acceleration due to gravity calculated this way works well for objects near the Earth’s surface. How would you have to change the above equation if the object was 100,000 meters above the ground?
  95. Physics

    The acceleration due to gravity calculated this way works well for objects near the Earth’s surface. How would you have to change the above equation if the object was 100,000 meters above the ground?
  96. Physics-10

    A vehicle that weighs 400N on the surface of the earth is traveling in outer space at a speed of 400m/s. it can be stopped by applying a constant force of 20N for?
  97. Earth's Dynamic Atmosphere

    Variations in air pressure are shown as _______ on surface weather maps. A. geostrophic B. barograph C. topographical D. isobars my naswer is d.
  98. EARTH SCIENCE

    Do you foresee humans colonizing the planets and moons of our solar system in the long term future of our species? What kind of terraforming would be necessary to make this possible?
  99. Earth and Space Science

    Put the following astronomical bodies in order from largest to smallest: a. Universe b. Galaxy c. Moon d. Planet e. Solar System f. Comet
  100. Science

    Hello, could someone help me with this question please? Explain how burning wood or coal to heat your house may contribute to global warming by altering the energy balance at the Earth's surface? Thank you