1. earth

    #15 The primary cause of crustal movement is_________ a.) conduction b.) convection c.) magnetism d.) radiation please help have no idea
  2. Science 8R - HW Qs. Check (#2)

    How long does it take the earth to revolve around the sun? my answer - 365 days right????
  3. physics

    Calculate the effective value of g, the acceleration of gravity (in meters/second^2), at 5100 km above the earth's surface.
  4. earth

    On the windward side of the mountain, should the relative humidity of the parcel change as it rises from 2000 m to 4000 m?
  5. Biology

    Explain how life on earth is dependent on both polarity of covalent chemical bonds and hydrogen bonding.
  6. phyisics

    If approximately 70% of the Earth's surface is covered with water, what is the order of magnitude for the number of raindrops in the world's oceans?
  7. science

    1. Earth's capital includes all of the following except a. wildlife. b. nutrients. c. water. d. soil. e. sunlight.
  8. physical/earth science

    what important nonmetal is in brilliant yellow acrylic paint that contains titanium dioxide
  9. meteogology

    Does the equator receive perpendicular sun rays to the Earth's surface most of the 365 day year.
  10. Science

    What would be the effect on the seasons and the northern and southern hemispheres if Earth were not tilted? Explain your answer. *PLEASE HELP ME*
  11. physics

    A kangaroo jumps straight up to a vertical height of 1.19m, how long was it in the air before returning on earth
  12. astronomy

    Find an exact expression for the magnitude of the tidal force applied by Earth to our rock of mass m
  13. science

    what type of eclipse would you expect to see if the moon passes directly between earth and the sun
  14. English

    Do I need parentheses or dashes in this sentence? Copernicus as you might know. decided that the earth travels around the sun.
  15. Biology

    Which of the following biomes covers the largest area of earth? tundra marine-----> My answer grassland forest
  16. english 1

    Which excerpt from the passage best allows the reader to infer that the Maori people felt cared for by the earth?
  17. gaya ,college science

    Which one of the following is an alkaline earth element? a) carbon b)sodium c)zinc d)iron
  18. science

    if a ball falls 3 meter and bounds 1/2 seconds on the earth, what would happen on the moon if the same happened?
  19. Science

    A spring scaled is used to measure the weight of a object on the earth. The scale on the moon would read what?
  20. Science

    A spring scaled is used to measure the weight of a object on the earth. The scale on the moon would read what?
  21. Science

    A spring scaled is used to measure the weight of a object on the earth. The scale on the moon would read what?
  22. Earth Science

    why didn't the early geologic time scale include the number of years ago that events happened?
  23. Earth science

    Why didn't the early geologic time scale include the number of years ago that events happened?
  24. Earth science

    Where on the ocean floor will you find the greatest amount of living organisms? Answer: the coral reefs
  25. Science

    Radius of the earth is 6400km and g is 9.8 m÷s find the value of g produced on a mass of 20 kg at a distance of 10000km from the earths surface ?
  26. physics

    Find the force of gravity (in newtons) on a spacecraft 15100 km above the earth's surface, if its mass is 400 kg
  27. physics

    Calculate the effective value of g, the acceleration of gravity (in meters/second^2), at 8600 km above the earth's surface.
  28. Natural science

    Why are the coldest temperatures at the lowest 50 km height from the surface of the Earth, occur generally at tropical tropopause?
  29. science

    1.where is most freshwater found on earth? A.lakes and rivers B.oceans and seas C.Underground D.icecaps and glaciers
  30. Physics

    An observer on Earth sees you travel 1000 m at half the speed of light. What distance do you think that you travelled?
  31. earth science

    The table below the C-14 Decay curve and the Correction curves contains the % Modern values for 4 samples.
  32. Physics

    An object weighs 100N on the earth's surface. Find its weight at a point P with orbital radius 2R. [g = 10NKg-1
  33. science

    Why does Earth get more energy from the sun than from all the other stars in the universe combined? BTS ARMY
  34. physics

    Calculate the escape velocity on surface of earth of radius of moon is 1740km and Massis7.4 *10to the power 22
  35. math

    A falling boulder hits the ground at a velocity of 15 m/s, losing 1,200 kg m/s of momentum to the Earth when it stops. What is its mass?
  36. physics

    A crank .25m long turns a shaft with a diameter of 3cm around which part of a rope is wound. One end of the rope hangs free and supports a weight of 4200nt. (a) What torque does the weight exert on the shaft? (b) WHat torque must be exerted on the crank to keep the system in ...
  37. Physics

    A place kicker must kick a football from a point 37.1 m from a goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked the ball leaves the ground with a speed of 19.8 m/s at an angle of 53° to the horizontal. (a) By how much does the...
  38. STATS HELP

    Final averages are typically approximately normally distributed with a mean of 72 and a standard deviation of 12.5. Your professor says that the top 8% of the class will receive an A, the next 20% a B, the next 42% a C, the next 18% a D, and the bottom 12% an F. a. What ...
  39. Chemistry

    Completion Stuck on number 7 & 11 on my homewowrk 7)An Equation must never be balanced by changing the _______ in the chemical formula of a substance. 11)If a _______ is used to increases the rate of a chemical reaction its formula is written above the arrow I think 7 is "...
  40. 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 weight of an object on ...
  41. math

    Suppose 100 dots are arranged in a square 10 × 10 array, and each dot is colored red or blue. (a) Prove that this array must contain a “monochromatic” rectangle. That is, no matter how the red and blue colors are assigned, there must be either a set of four red dots that ...
  42. Algebra word problem

    There are 50 questions to answer in a triva contest. Each player starts with 100 points. He or she earns ten points for each correct answer but will lose four points for each incorrect answer. Each player must answer all 50 questions. What is the fewest number of questions a ...
  43. Quick Physics Check

    2. Which of the following examples does not show projectile motion? A. a tennis ball bounces across the net B. a ball is thrown at a downward angle toward a target on the ground C. a feather drifts to the ground D. a horseshoe is pitched at a stake Is it C? 3. Which of the ...
  44. PUBLIC RELATION

    Can someone tell me what is the differences between public relation and legal ethics? i know there is, lawyer practise in court of aw where there is fairness and equal representation while PR work in court of opinion. Lawyers advise clients on what they must legally do to ...
  45. Pre-Algebra

    Solve the inequality for each solution. -Arnelle's checking account balance is -$49.00. How much money must she deposit to bring her account to a possitive balance? PlZZZ Help me! =( She must deposit $49.01 plus whatever the bank charges for writing a hot check plus any ...
  46. Physics. Help Please

    Gabriele enters an east-w straight bike path at the 3.0-km mark and rides w at a constant speed of 8.0 m/s. At the same time, Xena rides east from the1.0-km mark at a constant speed of 6.0 m/s. 1. Write function x(t) that describe the position of Gabriele as a function of time...
  47. Grammar

    Which of the following combines the sentences below by coordinating? Senate pages may be between fourteen and seventeen years old. Pages in the House must be high school juniors or seniors. A.Senate pages may be between fourteen and seventeen years old, while pages in the ...
  48. Ethics in Tech

    The Ariane 5 satellite launch vehicle failed because: A. a faulty on-board computer caused the other computers in the network to crash repeatedly. B. a bad sensor fed faulty information into the flight control computer, causing it to fail. C. the rocket's on-board computer ...
  49. English II

    Roosevelt is arguing that journalists must only attack misconduct when they have valid proof. They must not dig just for the sake of digging; it is offensive to good Americans. Which statement most effectively argues against this claim? a. Even sensational journalism is ...
  50. English

    Roosevelt is arguing that journalists must only attack misconduct when they have valid proof. They must not dig just for the sake of digging; it is offensive to good Americans. Which statement most effectively argues against this claim? a) Even sensational journalism is ...
  51. algebra

    1. What must be added to p to produce q? 2. What is the perimeter of the rectangle if the length is 2x-3y and the width is x+2y? What is the area? 3. What must be subtracted to 7y to leave -5y+2z? 1. q = 1 - p 2. Perimeter of rectangle = 2 length + 2 width. Area is length ...
  52. Math

    A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
  53. Math

    A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
  54. Math

    A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
  55. Health,Law

    Judge Jones is hearing a motion to order relase of substance abuse records pursunat to a subpoena. The hearing... 1. must be in open court because the records were subpoenaed. 2. may be opened in court to the discretion of the judge. 3. must be heard in chambers and sealed ...
  56. College Algebra

    Solve the problem. Jon has 1162 points in his math class. He must have 86% of the 1500 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?
  57. Math (Combinatorics)

    A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
  58. Math (Combinatorics)

    A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
  59. Chemistry

    You are required to plan and design an investigation to test the following hypothesis Black inks from three different brands of permanent makers contains different dyes. I want to know how to go about doing this lab What Aim must be use? What is the Hypothesis? What are the ...
  60. Physics

    Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.80 x 10^11 m apart. The larger of the two stars has a mass of 3.50 x 10^30 kg, and its center is 3.00 x 10^11 m from the system's center of mass. What is the mass of the smaller ...
  61. Science

    True or False? Can someone check to see if I am correct. If not, why? a) Two samples of matter have the same volume must have the same density FALSE: could have different densities b) two samples of matter having the same volume and the same number of particles must have the ...
  62. science

    True or False? Can someone check to see if I am correct. If not, why? a) Two samples of matter have the same volume must have the same density FALSE: could have different densities b) two samples of matter having the same volume and the same number of particles must have the ...
  63. physics

    (a) One of the moons of Jupiter, named Io, has an orbital radius of 4.22 108 m and a period of 1.77 days. Assuming the orbit is circular, calculate the mass of Jupiter. (b) The largest moon of Jupiter, named Ganymede, has an orbital radius of 1.07 109 m and a period of 7.16 ...
  64. Physics

    The atmosphere of Mars exerts a pressure of only 600 Pa on the surface and has a density of only 0.02 kg/m3. (a) What is the thickness of the Martian atmosphere, assuming the boundary between atmosphere and outer space to be the point where atmospheric pressure drops to 0.01% ...
  65. English

    I urgently need to check the following statements concerning global warming. 1.I think it is important to protect our planet for the future generations. 2.We must respect the environment instead of polluting it. 3.I agree with Sophia that teenagers can change older people’s ...
  66. ap chem-3 quest just need 1 answer

    A rifle bullet (mass = 1.50 g) is moving with a velocity of 850. mph. What is the wavelength associated with this bullet? Assume your eyes receive a signal consisting of blue light, = 470 nm. The energy of the signal is 2.5 10-14 J. How many photons reach your eyes? You must ...
  67. math

    Factor: x^3 - 3/4x - 1/4 The answer is: (x - 1)(x + 1/2)^2 How do I learn to do that? I'd like to reread an appropriate chapter from an appropriate textbook and do practice problems. It takes experience and practiced eye. Algebra books have chapters on factoring; ask your ...
  68. physics

    Spending a long time in weightlessness is unhealthy. One of the most important negative effects experienced by astronauts is a loss of muscle and bone mass. Since an ordinary scale won’t work for an astronaut in orbit, what is a possible way of monitoring this change in mass...
  69. Science

    How do clouds form? (No links, please, just a few facts, I've done half of this question) All weather occurs in Earth's _______. thermosphere troposphere*** stratosphere exosphere Because of their shape when seen from the ground, tornadoes are sometimes called _____. V clouds ...
  70. SOLVE -MATH

    A physics exam consists of 9 multiple choice questions and 6 open-ended problems in which all work must be shown.If an examinee must answer 6 of the multiple- choice questions and 3 of the open-ended problems, in how many ways can the questions and problems be chosen?
  71. algebra

    I have a trapezoid where the height is 16m, the base is 20m,and the area is 224m squared. what is the legnth of the other base http://www.mathgoodies.com/lessons/vol1/area_trapezoid.html The area is equal to the height times the average of the bases. Since the Area is 224 and ...
  72. algebra

    Find the slope of any line perpendicular to the line through points (0,5) and(-3,-4). I found the slope to be 3, but would the answer to the question be -1/3 ? what are your thoughts?? The slope of your given line is (y2-y1)/(x2-x1) = (-4 -5)/(-3-0) = -9/-3 = 3 The slope of ...
  73. Connexus, Civics, History

    Help with civics "What are the Rights of the Accused"? 1. The Supreme Court ruled in re Gault that people... A. that are under arrest must be read their rights by law enforcement. B. who cannot afford an attorney must be provided one by the state. C. accused of crimes have the...
  74. health

    What is a program-specific regulation? (1 point) Participation is voluntary, but its regulations are mandatory. Participation and regulations are mandatory. Only certain programs must participate. Only certain programs must follow its regulations
  75. earth

    Atmosphere Homework! 1.Which of the following layers of the atmosphere is closest to space? 2.A barometer measures? 3. The atmosphere contains tiny solid particles called what? 4.The process by which the atmosphere slows Earth's loss of heat to space is called the ..? 5.Almost...
  76. pre cal

    If the point (40,3) is on the graph of y=f(x), what point must be on the graph of y=8f(8x)? The point (?,?) must be on the new graph.
  77. physics

    It has been suggested, and not facetiously, that life might have originated on Mars and been carried to Earth when a meteor hit Mars and blasted pieces of rock (perhaps containing primitive life) free of the surface. Astronomers know that many Martian rocks have come to Earth ...
  78. Phyics

    I have a few questions that I need help with please. Show by algebraic reasoning that your gravitational acceleration toward an object of mass M a distance d away is a = GM/d2 and therefore doesn’t depend on your mass. (I don't understand this question) What does it mean to ...
  79. english

    1)which of the following sentences is punctuated correctly. a) a carpenter must use certain tools, hammers, saws, chisels, to finish a job. b)a carpenter must use certain tools hammers,saws, chisels-to finish a job. c)a carpenter must use certain tools- hammers, saws, chisels...
  80. math

    A skydiver jumps from his aircraft and falls towards earth. Due to the earth’s gravitational attraction, the sky diver will accelerate for a duration of 5.65 secs, at which time he reaches terminal velocity, that is a constant falling velocity of 181 ft./sec due to ...
  81. earth space science

    how are each of the air masses related and/or different from each other? Are you talking about the various layers of the atmosphere?
  82. Physics

    How long would it take for a beam of light to travel around the earth in an ideal fiber-optic cable?
  83. science

    when water falls as precipition it either runs off earth surface or sinks into the ground as____________________
  84. Math

    The Andromenia Spiral is a galaxy 2,200,000 light years from Earth. write this distance in scientific notation
  85. Physics

    What is the gravitational field strength at a place 220km above Earth's surface, the altitude of many piloted space flights?
  86. astronomy

    Why could the mass of Venus not be deduced from Earth-based observations in the same manner as the masses of most other planets?
  87. earth science

    what is the process that binds sediments into sedimentary rocks? i think it is deposition, compaction, and cementation. am i correct???
  88. General Science

    Water that's on the side of the earth facing the moon will? 1. retreat 2. rise 3. stay at the same level 4. fall
  89. 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)
  90. world geography

    the word aborigine comes from the latin ab orgine and means: A)"the people" B)**"from the beginning" c)"out of the earth" D)"to the end"
  91. Earth Science

    Where a major earthquake has happened in the past, but not in a while, is called a seismic? a)gap b)wave c)fault d)scale
  92. Science

    Deep within the earth, the process of mantle___?___drives plate tectonics A)convection B)subduction C)currents D)condensation
  93. Earth Science

    Plinian eruptions are the most powerful type of eruption. They are usually caused_______magma. A)rhyolitic B)bybasaltic C)andesitic
  94. Exploring Space

    Why do astronauts appear to float when they aboard the ISS station and experience 90% of earth's gravitational pull? Is it because of the freefall?
  95. earth science

    if continental crust were thinner than its average thickness of 40 km, would it depress the mantle more or less than it does now?
  96. college

    Find the minimum initial speed of a projectile in order for it to reach a height of 2039 km above the surface of the earth.
  97. science

    Let's say Glenn's trip around the earth took about 5 hours. that is how many times as long as Shepard's flight?
  98. science

    A falling star is really a ______burning up in the atmosphere of the earth. Just need to know if my answer or right or wrong. Thanks! :) meteor
  99. science

    The deepest layers of the earth is called the inner______. Just need to know if my answer or right or wrong. Thanks! :) Inner core.
  100. science

    A falling star is really a ______burning up in the atmosphere of the earth. Just need to know if my answer or right or wrong. Thanks! :) meteor
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