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"The planets Uranus and Neptune are so far from the Sun that temperatures are low enough for atmospheric methane, CH4, to condense and form clouds. How is it possible for methane, a nonpolar substance, to exist in this liquid state?"

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  1. Chemistry - Liquid Methane?

    "The planets Uranus and Neptune are so far from the Sun that temperatures are low enough for atmospheric methane, CH4, to condense and form clouds. How is it possible for methane, a nonpolar substance, to exist in this liquid state?" I want to say it's

  2. Science

    which of the following planets are considard rocky venus neptune saturn uranus i think uranus

  3. Science

    Use this paragraph: In a scale model of the solar system, the sun is placed at the center and the planets are shown orbiting in circles around it. Mars is 1.5 AU away from the sun and in the model, it appears at 30 cm from it which means that 1 AU = 20 cm.

  5. Science

    In a drawing that represents a scale model of the solar system, the sun is placed at the center and the planets are shown orbiting in circles around it. While in reality Mars is 1.5 AU away from the sun, in the model Mars appears at 30 cm from it. This

  6. Science

    In a drawing that represents a scale model of the solar system, the sun is placed at the center and the planets are shown orbiting in circles around it. While in reality Mars is 1.5 AU away from the sun, in the model Mars appears at 30 cm from it. Neptune

  7. Science

    1.)Check My Answers, please? Which of the following planets is considered a rocky, or terrestrial, planet? A.)Venus **** B.)Neptune C.)Saturn D.)Uranus 2.)Which of the following statements about the beginning of the solar system is true? A.)The planets

  8. Astronomy

    Please help! I'm really behind and need to catch up. 1. The rings orbiting the Jovian planets may have been small ____ that got too close to the planets long ago. A. Comets B. Asteroids C. Moons D. Meteors 2. What is the composition of the rings around the

  10. Physics

    The existence of the planet Pluto was proposed based on irregularities in Neptune's orbit. Pluto was subsequently discovered near its predicted position. But it now appears that the discovery was fortuitous, since Pluto is small and the irregularities in

  11. science

    Jupiter, Saturn, Uranus, and Neptune: what is one reason why life probably does not exist on these four planets?

  12. Science :)

    Hey guys!!!! Can someone please check my answers for me? There's only four questions. :) First question - A student uses a diagram to show the scale sizes of the planets. Which planet’s diameter would be approximately the distance across the United

  13. Solar System Online Practice Unit 2 lesson 10

    1. A diagram of the solar system shows the sun in the middle. Why does every other object orbit around the sun?(1 point) A. The sun is the most massive object in the solar system. 2. A student looks at an animated model of the planets orbiting the sun.

  15. Science

    Which of the following planets is considered a rocky, or terristrial, planet? A. Venus B. Neptune C. Saturn D. Uranus Is the answer A? Thank you

  16. science

    write T if the statement is true or F if it is false. a.)All the planets travel around the sun at the same speed.my answer is T. b.)The sun's gravity keeps the planets in orbit around it. my answer is F. c.)There is an asteroid belt between Jupiter and

  17. math

    Uranus is believed to have 13 more satellites than Neptune also Saturn is now believed to have 8 more than twice the number of satellites as Uranus .total number of satellites for these planets is 103.how many for each planet?

  18. physics

    The mean distance of the planet Neptune from the Sun is 30.05 times the mean distance of Earth from the Sun. a.) Determine how many Earth-years it takes Neptune to orbit the Sun. b.) The mass of the Sun is 1.99 x 10^30 kg, and the closest distance of

  20. Social Studies

    John lives on a part of Earth where the angle of the sun's rays are very high, and the latitude is low. Which temperatures does John experience quite often? A. temperatures that are sometimes very high and sometimes low B. low temperatures C. high

  21. Math

    All planets revolve around the sun in elliptical orbits. Uranus's furthest distance from the sun is approximately 3.005 times 10 to the ninth power km, and it's closest distance is approximately 2.749 times 10 to the ninth power km. Using this information,

  22. science

    1. Scientists hypothesize that the sun formed ____. (1 point) less than a billion years ago from a cloud of gas and dust less than a million years ago from a chunk of Jupiter 2. Two of the inner planets are ____. (1 point) Venus and Saturn Mars and Venus

  23. science

    what object in the solar system are larger then earth A mars mercury and venus b neptune pluto and uranus c the inner plants and the sun d the outer plants and the sun

  25. Astronomy

    OK I have no clue how to do this . Can you believe that it is about -360¤F on Neptune,about -357¤F on Uranus? BRRRR ! That's cold! What is the temperature outside today in your town? How much warmer is it in your town than on Neptune? How much warmer is

  26. Science/solar system

    I have a question. A student uses a diagram to show the scale sizes of the planets. Which planet’s diameter would be approximately the distance across the United States?(1 point) Mercury Uranus Neptune Jupiter

  27. science

    Solar System Distances Quick Check Question Use this paragraph: In a scale model of the solar system, the sun is placed at the center and the planets are shown orbiting in circles around it. Mars is 1.5 AU away from the sun and in the model, it appears at

  28. Math

    There are 61 known moons. Mercury and Venus do not have moons, but each of the 7 other planets has at least 1. How do I find the % of total moons for each planet? Earth - 1 Mars - 2 Jupiter- 16 Saturn - 18 Uranus - 15 Neptune - 8 Pluto - 1 Thanks for your

  30. Science

    A student uses a diagram to show the scale sizes of the planets. Which planet's diameter would be approximately the distance of the West Coast to the East Coast of the United States? Uranus Jupiter**** Mercury Neptune Check Please

  31. CLIMATE UNIT TEST

    John lives on a part of earth where the angle of the sun’s eats are very high and the latitude is low Which temperature does john experience quite often A. temperatures that are sometimes very high and sometimes low B. Low temperature C. moderate

  32. Planets

    Jupiter, Saturn, Uranus, and Neptune: what is one reason why life probably does not exist on these four planets? A) They have no gravity. B) They are the gas planets. C) They are the giant planets. **** D) They are the rocky planets. Earth seems to be the

  33. Science

    Jupiter, Saturn, Uranus, and Neptune: what is one reason why life probably does not exist on these four planets? A) They have no gravity. B) They are the gas planets. C) They are the giant planets. **** D) They are the rocky planets. Earth seems to be the

  35. Astronomy

    Venus is 0.72 AU from the Sun and Neptune is 30.06 AU from the Sun. Both have similar orbital eccentricities, 0.7 and 1.0 respectively. Predict how long it will take Venus to make one revolution around the sun compared to Neptune. Also predict the orbital

  36. Science

    Pluto alters the orbit of which planet? Uranus Saturn Neptune * Jupiter My guess is Neptune? There is not alo of info. that said the word "alters"? Help please....

  37. MATH

    Earth, Jupiter, and Uranus all revolve around the sun. Earth takes 1 yr, Jupiter 12 yr, Saturn 30 yr, and Uranus 84 yr to make a complete revolution. One night, you look at those three distant planets and wonder how many years it will take before they have

  38. Science

    I need help with Unit 2 Lesson 6's Solar system scale quick check please A student uses a diagram to show the scale sizes of the planets. Which planet’s diameter would be approximately the distance across the United States? A. Mercury*** B.Jupiter

  40. Science

    5) The tendency of two masses alone in the universe to drift together is a result of A) fission.

  41. algebra

    The mass of neptune is about 1.03x10^23 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Neptune is the mass of the sun? Give answer in scientific notation. The mass of the sun is about___times the mass of

  42. science

    According to Kepler's law of harmonies, which of these planets takes the longest to orbit the Sun? mars jupitor venus neptune

  43. science

    According to Kepler's law of harmonies, which of these planets takes the longest to orbit the Sun? mars jupitor venus neptune

  45. Math

    4.The following table shows the high and low temperatures predicted for Dallas during the week beginning Monday, August 29 2011. Which day has the biggest difference between the high and low temperatures? A.Mon D.Tue C.Wed D.Sun Monday High temp 106 Low

  46. Science :)

    Hi guys!!!! Can you please check my answers? What did gravity create when 99% of the gas and dust materials were gathered into the center of a flattened disc during the formation of the solar system?(1 point) Answer choices: A. the moons of planets B. the

  47. science

    Our solar system consists of_____? a) the moon and the planets b) the sun and the planets c) the sun and the moon d) the sun and the planets with their moons Just need to know if my answer or right or wrong. Thanks! :) d

  48. Gravity

    If the force of gravity between the sun and the planets disappeared, what would happen to the path the planets follow? A) They would continue to rotate around the sun. B) The planets velocity would increase as it got closer to the sun. C) The speed at

  50. Astronomy

    Neptune can complete a rotation at 18 to 20 hours. You're rania's can make one in 16 to 28 hours. What is the average time it takes Neptune to complete rotation? What is the average time it takes uranus to complete a rotation? What is the average for both

  51. science

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements

  52. ms. sue

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements

  53. Science

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements

  55. Physics

    Calculate the gravitational force between the Sun and Neptune. The mass of the Sun is 1.99×1030 kg. The mass of Neptune is 1020×1023 kg. The distance between them is 450×1010 m.

  56. physics

    Calculate the gravitational force between the Sun and Neptune. The mass of the Sun is 1.99×1030 kg. The mass of Neptune is 1020×1023 kg. The distance between them is 450×1010 m.

  57. science

    i'm not sure witch statement is true .The earth has a stronger gravitational pull than the Sun because it is smaller in mass. .Planets would travel in a straight line if it weren't for the force of the Sun's gravity. .The Sun's gravitational pull is weaker

  58. Math

    The average radius r in meters of a planet's path around the sun is given by the formula r=[(3.35 x 10^18)t^2]^1/3, where t is the time in seconds that it takes the planet to go around the sun. a. Rewrite the equation using the root symbol. b. Neptune

  60. science/astronomy

    4. Which of the following is a common feature among the four inner planets? (1 point) atmosphere composition distance from the sun rocky surfaces**** temperature range 5. Which of the following is the smallest terrestrial planet? (1 point) Mars Mercury**

  61. Science

    Please check my answers? My textbook won't load, so i've had to use google and guess. 1. Scientists hypothesize that the sun formed ____. (1 point) less than a billion years ago **from a cloud of gas and dust less than a million years ago from a chunk of

  62. Physics

    (II) Every few hundred years most of the planets line up on the same side of the Sun. Calculate the total force on the Earth due to Venus, Jupiter, and Saturn, assuming all four planets are in a line, Fig. 5–44. The masses are mV = 0.815 mE, mj = 318 mE,

  63. ALG/TRIG

    Lost is an understatement..please help me understand this. Orbits and Distance Johannes Kepler (1571–1630)discovered a relationship between a planet’s distance D from the sun and the time T it takes to orbit the sun. This formula is , where T is in

  65. Science

    Yall check my answers please? 1. A spiral galaxy can be described as what type of shape?(1 point) oval triangular no distinct shape pinwheel*** 2. What lies at the center of the Milky Way galaxy?(1 point) the sun a black hole*** Earth North Star 3. How are

  66. science

    planets in our solar system travel in their own orbital paths around the sun. what causes the planets to continuously orbit the sun instead of floating away into space? help please

  67. Science

    1. When the solar system first formed, 99 percent of the gas and dust material gathered together in one spot. What did gravity form by forcing most of the gas and dust into the center of a flattened disc? Answer: The Sun 2. How were the planets in the

  68. science

    what outer planet is known for having visible clouds in its atmosphere ? a)Uranus b)Neptune c)Saturn d)Jupiter

  70. science with planets

    What was the planet last to be discovered out of these? 1.Mars 2.Mercury 3.Neptune 4.Pluto 5.Saturn 6.Uranus 7.Venus

  71. Science

    A diagram of the solar system shows the sun in the middle. Why does every other object orbit around the sun? A.) The sun is smaller than other objects in the solar system. B.)The sun is the most massive object in the solar system. C.)The sun is an average

  72. college Math Word Problem

    The mass of Uranus is about 8.7x10^22 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Uranus is the mass of the sun? Give your answer in scientific notation.

  73. Physics

    Uranus makes one complete orbit of the Sun every 83.8 years. Calculate the radius of the orbit of Uranus. Hint: It is a very good approximation to assume this orbit is circular.

  75. science i neeeddd help

    How did the sun wind up in the middle of the solar system? Did the materials, gas and dust that eventually formed the planets come from the sun? I think this is the answer is it correct- Since our solar system is already formed, we must try to reconstruct

  76. Science

    Have I matched the right Scientists with these famous sayings: Scientists: Ptolemy, Kepler, Copernicus, Newton, Galileo, Brahe & Hubble. 1)"I've finally worked out an explanation as to why planets orbit the sun and moons orbit planets. It is gravity that

  77. Physics help quick!

    22. What does it mean for a force to act in accordance with an inverse square law? The square of the force is inversely proportional to the distance. The force decreases if the distance increases. The force is directly proportional to 1/r2 where r is the

  78. Science

    1. How did plantesmals form plants A. They broke into smaller chunks B. They collided and stuck together** C. They cooled and pulled ice together D. They began to rotate 2. Whats the distance used to define the astronomical unit A. The average distance

  80. algebra

    The mass of Neptune is about 1.03x10^23 metric tons. The mass of the sun is about 1.998x10^27 metris tons. About how many times the mass of Neptune is the mass of the sun? Round to the nearest thousandth, if needed use scientific notation. Use the

  81. algebra

    The mass of Neptune is about 1.03x10^23 metric tons. The mass of the sun is about 1.998x10^27 metris tons. About how many times the mass of Neptune is the mass of the sun? Round to the nearest thousandth, if needed use scientific notation. Use the

  82. SOLOR SYSTEM

    WHAT IS THE DISTANCE BETWEEN FROM THE SUN AND EARTH TO ALL THE PLANETS http://www.windows.ucar.edu/tour/link=/kids_space/distance.html =) every thing that goes a round the sun is called an ecosystem It's size solor system has 9 planets.

  83. Math

    Uranus is approximately 2.74 x 10^9 km away from the Sun at perihelion and 3.00 x 10^9 km at aphelion. Find the eccentricity of Uranus's orbit given that the perihelion is r = a(1 - e) and the aphelion is r = a(1 + e).

  85. Math

    The planet Neptune is approximately 4.5 * 10^9 kilometers from the sun. The planet Venus is approximately 1.1 * 10^8 kilometers from the sun. Which is the best estimate of how many times as far from the sun Neptune is as Venus? A. about 4 times as far B.

  86. math word problem

    Jim is making a diagram of the solar system. If he draws Neptune, which is 2795 million miles from the sun, 10 inches from the sun on his paper, how far away (to the nearest tenth of an inch) from the sun should he draw Mars, which is 142 million miles

  87. PLEASE HELP ASAP!!!!

    A spiral galaxy can be described as what type of shape?(1 point) oval triangular no distinct shape pinwheel What lies at the center of the Milky Way galaxy?(1 point) the sun a black hole Earth North Star How are asteroids and comets similar?(1 point) Both

  88. math

    The mass of neptune is about 1.03 x 10^23 metric tons. The mass of the sun is about 1.998 x 10^27 metric tons. About how many times the mass of neptune is the mass of the sun? Give answer in scientific notation.

  90. physics

    The gravitational field intensity at a height of 150 km above the surface of Uranus is 8.71 N/kg. The radius of Uranus is 2.56 x 107 m. a. Calculate the mass of Uranus. b. Calculate the gravitational field intensity at the surface of Uranus. c. How much

  91. Science (planets/gravity)

    What keeps all the planets the big ones and the small ones in orbit in our big solar system? A.The gravity from the sun. B.The gravity from the moon. C.The gravity between all the planets. D.The gravity from the beautiful our earth. What do all the planets

  92. Physics

    Earth speeds along at 29.8 km/s in its orbit. Neptune's nearly circular orbit has a radius of 4.5 x 109 km, and the planet takes 164.8 years to make one trip around the Sun. Calculate the speed at which Neptune plods along in its orbit.

  93. Chemistry HELP

    Not all enzymes have an optimum temp of around 40 degrees celcius. Find out where reactions involving enzymes: would take place at very high temperatures would take place at very low temperatures i've tried looking on the internet, but I get a lot of

  95. statistics and probability

    6. MGSE6.SP.5: Kendra recorded the low temperatures (in degrees Fahrenheit) in her city each day for 8 consecutive days. Her data are shown. 28, 15, 22, 30, 18, 27, 25, 2 Which Statements are true about the data? A. 50% of the temperatures are between 16.5

  96. science

    Which planet by itself contains the majority of mass of all the planets? saturn jupiter uranus venus earth

  97. physics

    The acceleration due to gravity at the north pole of Neptune is approximately 10.7 m/s^2. Neptune has mass 10^26kg and radius 25000km and rotates once around its axis in a time of about 16h. What is the gravitational force on an object of mass 4.8kg at the

  98. English/ pls help me

    (1) Quick—how many planets are there in the solar system? It's a simple question, but there's no easy answer. You might have learned there are nine: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. But now that view of the solar

  100. astro

    The intensity of an object is related to the distance d to the observer by the equation (I1/I2) = (d2/d1)2. If the apparent magnitude of the Sun seen from Earth has a value of -26.74, what is the apparent magnitude of the Sun seen from Neptune (30AU from

  101. astronomy

    what is search for extrasolar planets? Looking for planets around stars other than our own sun.

  102. Science

    Which of the following may have happened if the inner planets had greater masses during the formation of the solar system? A. The inner planets may have been even smaller and rockier. B. The inner planets may have been larger and more gaseous. C. The inner

  103. science

    Which of the statements below are true? a) The surface of the sun is over 10,000 degrees F B) The sun is hot enough to heat the earth and give light to the planets c) The sun will continue to burn for at least another 5 billion years d) all of the above

  105. grade nine space

    Compare the following objects in the our Solar System in terms of 1. Where they are located and 2. What they are composed of : Sun Terrestrial planets Jovian planets Asteroids Comets Meteroids

  106. science

    1. Which layer of the sun’s atmosphere are you looking at when you look at an image of the sun? (1 point) photosphere chromosphere corona prominence 2. Which of the following materials could have been found in the giant cloud that formed the solar

  107. Science - Solar System

    The sun contains 99.85 percent of the mass of the entire solar system. How does the mass of the Sun compare to the masses of the planets in the solar system? See answer #2 on the link below. http://www.newton.dep.anl.gov/askasci/ast99/ast99227.htm Thank

  108. Science

    What caused people to accept the geocentric model of the universe?(1 point) Noticing the gravity will eventually pull all the planets and the universe back together. Telescopes allowed for a much detailed view of the circular orbits of the planets.

  110. Science

    What caused people to accept the geocentric model of the universe?(1 point) Noticing the gravity will eventually pull all the planets and the universe back together. Telescopes allowed for a much detailed view of the circular orbits of the planets. Objects

  111. science

    The gravity of the sun has helped create and maintain the solar system we know today. Which planet does the sun exert the greatest gravitational pull upon?(1 point) Neptune Earth Mercury Jupiter plz help

  112. Physics

    A satellite orbits Neptune 4000km above its surface. given the mass of Neptune is 1.02x10^26 kg and the radius of Neptune is 2.48x10^7m, Calculate the orbital speed of the satellite

  113. Climate

    Which of the following statements about climate is FALSE? A. Deserts usually occur at very low altitudes. B. Temperatures usually decrease with altitude. C. Coastal temperatures are usually cooler than inland temperatures. D. The southern hemisphere is

  115. Science

    What did gravity create when 99% of the gas and dust materials were gathered into the center of a flattened disc during the formation of the solar system? A:the planets B:the asteroid belt C:the moons of planets D:the sun

  116. math

    At a given time, Saturn was 9.1 x 10 to the 8th miles from the sun and the earth was 9.3 x 10 to the 7th miles from the sun. by what distance is one planet closer to the sun than the other planets?

  117. science

    What caused people to accept the geocentric model of the universe?(1 point) Noticing the gravity will eventually pull all the planets and the universe back together. Telescopes allowed for a much detailed view of the circular orbits of the planets. Objects

  118. REALLY EASY

    Which of the following are a consequence of the Earth's yearly motion around the Sun? (check all that apply) 1.the Sun appears in different constellations in different seasons 2.the planets look different than stars 3.the Sun rises and sets 4.the Moon

  120. chemistry

    A process which is unfavorable with respect to enthalpy, but favorable with respect to entrophy a)could occur at high temperatures, but not at lower temperatures b)could not occur regardless of temperature c)could occur at any temperature d)could occur at

  121. Physics

    A synchronous satellite, which always remains above the same point on a planet's equator, is put in orbit around Neptune so that scientists can study a surface feature. Neptune rotates once every 16.1 h. Use the data of Table 13.2 to find the altitude of

  122. Science; Solar System

    True or False 5. The outer planets are small, rocky planets with iron cores. true false 6. It is unlikely that the sun formed alone. It probably formed with a cluster of stars like the sun. true false

  123. Math

    The table shows the record monthly high and low temperatures for a city in Alaska. What is the range of temperatures for the year?

  125. science

    the sun is at the center of our solar system all planets in the solar system orbite around the sun which of the following planets hasthe longest orbite ?

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