1. Science

    Help find the mystery phrase. We are studying the Earth and were not given anything except letters. They are: RORPSPNGLOADEEASI. Please help!!!

    asked by Anonymous on January 23, 2011
  2. physics

    need the formula to find jupiters orbital period in earth years

    asked by deb on January 15, 2008
  3. science

    churvas mass is 66kg. find his weight on earth and on the moon.

    asked by james harold on October 11, 2011
  4. physics

    find the moment of inertia of the earth. Radius is 6,000 km and mass is 6 x 10^24 kg

    asked by chloe on May 6, 2014
  5. Science

    Find your mass if a scale on Earth reads 650N when you stand on it.

    asked by Jennifer on March 24, 2008
  6. science

    churvas mass is 66kg. find his weight on earth and on the moon.

    asked by james harold on October 11, 2011
  7. U.S History

    Which of these describes the location of the Gulf of Mexico? A. South of West Florida B. East of East Florida C. West of New Orleans D. South of Great Britain I think its A.

    asked by Student on January 5, 2016
  8. reading

    Examine the evidence of the Earth's shape. The sharp horizon at first suggests a flat Earth with an edge. But as you walk toward the horizon, the "edge" recedes ahead of you, implying that the Earth's surface is curved. Look also at a ship sailing out to

    asked by jay on June 14, 2011
  9. Physics

    Taking the age of Earth to be about 4 ✕ 109 years and assuming its orbital radius of 1.5 ✕ 1011 m has not changed and is circular, calculate the approximate total distance Earth has traveled since its birth (in a frame of reference stationary with

    asked by Heather on November 19, 2017
  10. Physics

    .) Beth launches a rocket out in the courtyard. It stays in the air for 7.25 seconds before coming back down. a.) How high did it get? b.) With what velocity did it hit the ground upon returning to Earth? c.) What is its rate of acceleration as it slows

    asked by Heidi on November 12, 2010
  11. social studies { somebody please help me please

    What countries were members of the central powers in WW1? A. Austria-Hungary, Germany, Turkey*** B. France, , Germany, Russia C. France, Great-Britain, Russia D. Great-Britain, United States, Turkey 2. What caused the U.S to enter WW1 after 3years of

    asked by UNKNOWN on April 5, 2016
  12. physics

    a)find the charge to mass ratio for an electron accelerated through 600v in a magnetic field of strength 45mT where the speed of the electrons is 1.4*10^7m/s b)what is the percentage difference b/n your result and the accepted ratio with the value

    asked by ruth on March 10, 2016
  13. Physics

    A person walks 23.0° north of east for 2.60 km. How far due north and how far due east would she have to walk to arrive at the same location?

    asked by Ashley on September 14, 2011
  14. Physics

    A person walks 15.0° north of east for 3.70 km. How far due north and how far due east would she have to walk to arrive at the same location?

    asked by Imani on September 27, 2011
  15. physics

    A person walks 11.0° north of east for 3.30 km. How far due north and how far due east would she have to walk to arrive at the same location?

    asked by Anonymous on September 26, 2011
  16. physics

    An object has a velocity of 5.00 m/s at an angle of 30.0˚ north of east. If we define east as the +x direction and north as the +y direction, what is the magnitude of vy?

    asked by alexis on February 17, 2015
  17. Science

    A space probe on the surface of Mars sends a radio signal back to earth a t a distance of 8.66 x10*7 radio waves travel at a speed of light 3.00 x 10^8 . How many seconds does it take for it to reach earth

    asked by Sherri on January 21, 2016
  18. physics

    How is the angle of inclination of the sun measured on the vernal or autumnal equinox at noon related to the latitude of our location here on earth. Use a picture that includes the earth and the sun in your explanation. I'm completly lost

    asked by God Help Me on November 13, 2008
  19. geology

    What is the minimum age of Earth. We are given a hint of: If the age of Earth were equal to one calendar year, the 1492 arrival of Christopher Columbus in America would have occurred at five seconds to midnight Dec. 31. That confuses me even more.

    asked by m on November 22, 2010
  20. Physics

    An object of mass 3.5x1023kg circles the earth and is attracted to it with a force whose magnitude is given be GMeM/r^2. If the period of rotation is 22 days, what is the distance from the earth to the object? Here G=6.67x10-11 Nm2/kg2, Me=6x1024 kg.

    asked by Charlie on April 5, 2008
  21. Maths

    If a plane travels halfway round the world at an altitude of 11300m, what extra distance in km, will it fly compared with the distance measured at the surface of the Earth? The radius of the earth is approximately 6400km

    asked by Anonymous on February 27, 2014
  22. physics

    A body is dropped from a height of 10 meters on Earth and hits the ground with a certain velocity. The body is then taken to the moon, which has a gravitational constant that is 1/6th the value as compared to Earth. It is dropped from the same height,

    asked by Tina on January 25, 2011
  23. Physics

    You are on a treasure hunt and your map says "Walk due west for 52 paces, then walk 29.6° north of west for 40 paces, and finally walk due north for 25 paces." What is the magnitude of the component of your displacement in the following directions? (a)

    asked by Taylor on October 5, 2011
  24. physics

    Evidence suggests that there are trillions of dollars' worth of minerals and metals buried in Near Earth Asteroids (the ones that come close to the Earth, not the ones in the asteroid belt between Mars and Jupiter). Many scientists think an asteroid mining

    asked by Jeff on March 18, 2010
  25. Physics

    A duck has a mass of 2.3 kg. As the duck paddles, a force of 0.08 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.21 N in a direction of 55° south of east. When these forces begin to act, the velocity of the

    asked by Niveen on October 12, 2010
  26. math

    Carrie and Krystal are taking a road trip from Greenville to North Valley . Each person has her own map,and the scales on the map are different. A.On Carrie's map, Greenville and North Valley are 4.5 inches apart.The scale on her map is 1 inch=20 miles.

    asked by Anonymous on January 6, 2015
  27. Physics

    I know how to do displacement, I just get confused by the directions. I walk 6 blocks east and 5 blocks north-I come up with 7.8 because I squared 6 + squared 5 and took the square root of 61 but do I say the final displacement is 7.8 blocks east of north

    asked by Tina on January 5, 2011
  28. physics

    Equivalent forces derivation problem. EXAMPLE: Derive the formula for F3 in terms of the experimentally measured quantities m1, m2, 1, and 2. [Answer: F3=m1gcos1+m2gcos2.] Make sure you understand how this formula was derived. QUESTION: If the mass of both

    asked by Judy on February 1, 2010
  29. Physics

    Neglect the gravity of the Moon, neglect atmospheric friction, and neglect the rotational velocity of the Earth in the following problem. A long time ago, Jules Verne, in his book From Earth to the Moon (1865), suggested sending an expedition to the Moon

    asked by Tarbela Damme on November 15, 2012
  30. Geography

    Where on Earth? You work for a company that specializes in environmental cleanup. Your company has been approached by representatives of several Eastern European governments. They want to clean up the Danube River and are asking companies in the United

    asked by y912f on March 30, 2010
  31. SCIENCE HELP PLEASE

    Suppose the moon rotated on its axis just as quickly as Earth. Would you still always see the same side of the moon from Earth? *HELP ME PLEASE*

    asked by Sarah on January 8, 2014
  32. physics

    Calculate the force of gravity on a 1 kg mass at Earth's surface. The mass of Earth is 6.0×10^24 kg , and its radius is 6.4×10^6 m.

    asked by jim on March 6, 2012
  33. science

    As the moon revolves around the Earth, it also rotates on its axis. Why is it that the the same side of the moon is always visible from Earth?

    asked by Lakshmi on November 22, 2015
  34. SCIENCE

    AT WHAT HEIGHT ABOVE THE EARTH'S SURFACE DOES THE ACCELERATION DUE TO GRAVITY FALL TO 1% OF ITS VALUE AT THE EARTH SURFACE

    asked by DEEPAK on December 9, 2012
  35. Physics

    Why is more fuel required for spacecraft to travel from the earth to the moon than to return from the moon to the earth?

    asked by Stuck on November 6, 2016
  36. science

    the radius of planet x is twice that of the earth and its mass is also twice that of the earth. The gravitational acceleration on planet x would be approximatley?

    asked by thabo on February 14, 2016
  37. physics

    gravity on the surface of the moon is only 1/6 as strong as the gravity on earth. What is the weight of a 39kg on the earth?

    asked by Ayesha on February 19, 2008
  38. Physics

    At what altitude above the Earth's surface would your weight be three-fourths of what it is at the Earth's surface? Assume re = 6.371 10^3 km.

    asked by Amanda on October 3, 2009
  39. physics

    A rocket is launched straight up from the earth's surface at a speed of 1.80×104 m/s^2. a)What is its speed when it is very far away from the earth?

    asked by kelly on December 1, 2009
  40. science

    if i weigh 100 lbs on earth and i went to another planet whose gravity is 15 times that of the earth, how much would i weigh

    asked by lisa on May 7, 2010
  41. Physics

    Calculate the force of gravity on a 2 kg mass at Earth’s surface. The mass of Earth is 6 * 10 ^24 kg, and its raidus is 6.4 * 10 ^ 6.

    asked by Amanda on January 14, 2012
  42. science

    If your weight is 60 N on earths surface how far should you go from the centre of earth so that your weight will be 300 N ?(radius of earth is 4.4*10^6 m)

    asked by monika on March 18, 2013
  43. Algebra 1

    There is three times as much water as land on Earth's surface. What percent of earth is covered by water?

    asked by Isabella on June 26, 2011
  44. Science

    Suppose the moon rotated on its axis just as quickly as earth. Would you still see the same side of the moon from earth? Please help!

    asked by Amanda on November 30, 2015
  45. Science

    occurs when the moon passes between the sun and the earth, and the shadow of the moon falls on earth.

    asked by Muffee on October 27, 2014
  46. physics

    an object weighs 3 lb. at 10 earth radii from its center. What is the object's weight on the earth's surface?

    asked by Leo on June 17, 2012
  47. earth

    At what height above the earth surface will an austranouts experience only half the gravitation that he experience on earth

    asked by nonkululeko solomons on February 7, 2012
  48. physics

    could you estimate the mass of the entire earth? How? If we cannot direct measure the earth's mass, how was it determined?

    asked by sue on September 7, 2011
  49. PHYSICS

    does the sun exert a gravitational force on the earth? if so, why doesn't the earth fall into the sun?

    asked by Katie on December 22, 2010
  50. English

    Do you capitalize north as in "The North?"

    asked by Jia on October 26, 2009
  51. Science

    If a ball A moves at X speed eastwards collideds with a stationary ball B. Ball A now moves at Y speed north east (40 degrees upwards from eastward direction) and ball B moves at W speed south east (50 degrees downwards from eastward direction). To

    asked by Loli on May 2, 2016
  52. Science

    If a ball A moves at X speed eastwards collideds with a stationary ball B. Ball A now moves at Y speed north east (40 degrees upwards from eastward direction) and ball B moves at W speed south east (50 degrees downwards from eastward direction). To

    asked by Loli on May 3, 2016
  53. science

    Discuss how comets might have a role to play in life evolving on an earth-like extrasolar planet in a distant solar system. can some one please help me out here. If life came to Earth via a comet, wouldn't it make sense to predict that some comet could

    asked by kat on May 18, 2007
  54. History

    Select two groups of Native American people from two different areas within the United States. The area you can select from include the North, West, Southwest, Plains, and East/Southeast. Explain how environmental factors influence their homes and food. I

    asked by Victoria on October 21, 2015
  55. Physics-ASAP

    A plane has an airspeed of 200 {mph}. The pilot wishes to reach a destination 600 {mi} due east, but a wind is blowing at 50 {mph} in the direction 30 degrees north of east. a)In what direction must the pilot head the plane in order to reach her

    asked by Fizza on September 28, 2011
  56. history

    Winston churchill described soviet control of eastern europe as an "iron curtain" dividing the continent. what did the iron curtain come to symbolize? 1. the division of europe into north and south blocs 2. a growing fear of economic collapse that was

    asked by Ciara's Sister on December 16, 2011
  57. physics

    An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

    asked by Maggie on November 22, 2009
  58. physics

    An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? Is A the correct answer? a) That there is no reaction force-the net force on the

    asked by ronnie on November 23, 2009
  59. physics

    An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

    asked by Maggie on November 22, 2009
  60. Physics

    An explorer in the dense jungles of equatorial Africa leaves his hut. He takes 43 steps at an angle 45north of east, then 80 steps at an angle 60 north of west, then 51 steps due south. Assume his steps all have equal length. Save him from becoming

    asked by Allison on April 7, 2011
  61. trig

    Two pilots take off from the same airport. Mason heads due south. Nancy heads 23º west of south. After 400 land miles, how far is Nancy from Mason’s route? Round your answer to the nearest tenth of a mile. (Enter only the number.)(If someone had helped

    asked by Parker on October 17, 2011
  62. science help pls pls

    The table below shows the average distances of Jupiter and Earth from the sun. Name of Planet Average distance from the sun (in AU) Jupiter 5.2 Earth 1.0 What is the difference between the orbital periods of Jupiter and Earth? 4.20 years 6.20 years 8.86

    asked by Oscar on September 1, 2016
  63. science

    Please help me out! 8. Which of the following motions causes day and night? The sun's movements in the sky Earth's revolution around the sun Earth's movements in space Earth's rotation on its axis**** 10. Why can you never see the far side of the moon from

    asked by Three Days Grace on November 15, 2018
  64. chemistry (doubt)

    We know that all matter are made up of atoms and all atoms consists of electrons ,protons, neutrons ,etc.Then why do we find such a variety of matter?Why is wood not gold?

    asked by ... on August 5, 2011
  65. chemistry

    We know that all matter are made up of atoms and all atoms consists of electrons,protons,neutrons,etc.Then why do we find such a variety of matter?Why is wood not gold?

    asked by ........................... on July 29, 2011
  66. earth

    The weight (V) of an object on Venus varies directly as its weight (E) on Earth. A person weighing 120 lb on Earth would weigh 106 lb on Venus. How much would a person weighing 180 lb on Earth weigh on Venus?

    asked by Anonymous on September 5, 2012
  67. chem--electrochemistry

    So in this reaction: Ag(s) + Fe(+3) --> Ag(+) + Fe(+2) we are given 20 grams of Ag(s) to start off with. How do we find how many electrons are transfered in the reaction. And how many grams of Fe(+2) is formed. *for the latter, i think that we can

    asked by Rav on March 28, 2010
  68. chemistry

    Hi, Is the molecular formula different when it is in a gaseous state? Cheers ;) Sometimes yes, sometimes no. H2O, for example, is thought to be in a group of 6 as a liquid at room temprature, a group of 4 at higher temperatures, and single H2O molecules as

    asked by bertie on February 6, 2007
  69. Physics

    Oasis B is a distance d = 7.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 22 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 34

    asked by Robin on February 9, 2014
  70. physical

    Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 21 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 30

    asked by Anonymous on October 13, 2012
  71. Physics

    A 1500-kg blue car is travelling south, and a 2000-kg red sports car is travelling west. If the momentum of the system consisting of the two cars is 8000kg.m/s directed at 60 degrees west of south, what is the speed of each car?

    asked by Reynaldo on March 3, 2015
  72. Physics

    A bee flies to a flower 549 m due south of its hive. The bee’s speed in still air is 0.58 m/s, and there is a wind blowing toward the south at 0.18 m/s. How long will it take the bee to travel to the flower and back to the hive? Answer in units of s

    asked by dallas on February 6, 2013
  73. physics

    A bee flies to a flower 583 m due south of its hive. The bee’s speed in still air is 0.68 m/s, and there is a wind blowing toward the south at 0.16 m/s. How long will it take the bee to travel to the flower and back to the hive? Answer in units of s

    asked by bill on November 18, 2014
  74. physics

    In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.80 m/s relative to the ground. A teammate passes the ball to him. The ball has a speed of 13.6 m/s and is moving in a direction of 32.5 degrees east of north, relative

    asked by bobjahng on November 2, 2010
  75. science

    The earth's magnetic shield has a) appeared only recently b)disappeared for short periods of time c)caused the earth's land masses to drift apart d)little effect on life this planet e)existed since the planet cooled e

    asked by ant on August 17, 2010
  76. Earth Science

    1. What are one internal and one external source of energy in the Earth system? 2. Earth scientists assume that the causes of natural events of phenomena can be discovered through... 3. Science constantly creates new technology. Does this new technology

    asked by Emma on January 13, 2013
  77. Math/calculus

    Earth orbits the sun at an average distance of about 150 million kilometres every 365.2564 mean solar days, or one sidereal year. What is the linear velocity of th3 Earth in kilometres per hour?

    asked by Jessica on November 13, 2017
  78. Earth Science

    1. What are one internal and one external source of energy in the Earth system? 2. Earth scientists assume that the causes of natural events of phenomena can be discovered through... 3. Science constantly creates new technology. Does this new technology

    asked by Emma on January 12, 2013
  79. Electromagnetic spectrum

    Some astronomical objects emit no visible light but are known through (blank?) and radio images; satellite observations (blank?) Earth's atmosphere help scientists study space at wavelengths that do not reach Earth's surface?

    asked by Anonymous on February 26, 2013
  80. Chemistry

    Can you help me with solving this? I don't just want the answer,but how to do it. The average distance between Mars and Earth is about 1.3 108 miles. How long would it take TV pictures transmitted from the Viking space vehicle on Mars' surface to reach

    asked by Alex on April 11, 2011
  81. SCIENCE

    1. An environmental engineer might (1 point) Create mathematical models of what may happen to global temperatures in the future. Build and maintain a marine exhibit for an aquarium. Help an oil finery reduce its toxic gas emissions.*** Stock a lake with

    asked by SkatingDJ on January 19, 2015
  82. Physics

    Electrons in a narrow beam travelling at a steady speed of 5 x 10^7 ms^-1 are directed into the space between two oppositely charged parallel plates 50mm apart. The potential difference between the plates is 2500V. The initial direction of the beam is

    asked by Ben on February 17, 2016
  83. homework

    Which of the following would cause the greatest decrease in gravitational force between the earth and the moon? an increase in the earth's mass an increase in the moon's mass an increase in the distance between the earth and the moon a decrease in the

    asked by Anonymous on November 3, 2013
  84. science

    Which of the following would cause the greatest decrease in gravitational force between the earth and the moon? an increase in the earth's mass an increase in the moon's mass an increase in the distance between the earth and the moon a decrease in the

    asked by savana on April 11, 2017
  85. Social Studies

    The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? A) The southern states were leaning toward emancipation B) Slaves were hopeful to acquire jobs in Northern

    asked by Jasmin on January 8, 2017
  86. History :)

    Can someone help with this one please? Select one reform movement from the Progressive Era. Describe the movement and its impact on South Carolina. Provide details and examples that support how this movement changed South Carolina. Websites and examples

    asked by Martin on April 3, 2015
  87. history

    n President James Monroe's annual address to Congress in 1823, he outlined his foreign policy. This policy has become known as the Monroe Doctrine. What was the main point of the Monroe Doctrine? A. The United States would prevent future European

    asked by Anonymous on February 11, 2016
  88. Physics

    A pedestrian moves 5.7 kmeast and then 8 km north. Find the magnitude of the resultant dis- placement vector. Answer in units of km

    asked by Crystal on September 30, 2012
  89. physics

    from point A, a boy walks 4 m to the east,2 m to the sout, 4 m to the west , and finally, 2 m to the north , find the distance he travelled and his displacement

    asked by same on August 21, 2014
  90. science

    Which of the following would increase the effect of tides on Earth (high tides get higher, low tides get lower) - slowing the rate of rotation of the Moon. - increasing the rate of rotation of the Moon. *** - decreasing the distance between the Earth

    asked by ally on September 23, 2017
  91. science

    Which of the following would increase the effect of tides on Earth (high tides get higher, low tides get lower) - slowing the rate of rotation of the Moon. - increasing the rate of rotation of the Moon. *** - decreasing the distance between the Earth

    asked by ally on September 22, 2017
  92. physics hey damon one more please! =]

    Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally weightless. Take

    asked by Jon on January 14, 2008
  93. PHYSICS

    Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally weightless. Take

    asked by Courtney hey damon can i get the quadratic on this on January 9, 2008
  94. Astronomy

    In the laboratory, an atom emits a spectral line at a wavelength of 400 nanometers. In the spectrum of a star, the same spectral line is found to have a wavelength of 410 nanometers. What can be said about the star? a. It is hotter than the Sun. b. It is

    asked by Xenon on February 15, 2018
  95. Grade 12 Physics

    A rocket ship is moving away from the earth after having been fired from a launch pad in Florida. At what point above the earth's surface will the force of gravity be reduced to ½ of its original value? ------------------ Prior to this question I was

    asked by Ian on January 13, 2015
  96. Social Studies

    1) The South is an excellent place to grow such crops as cotton, rice, tobacco, and sugar cane. Which of the following is NOT part of the South's excellent farming conditions? a. The warm climate is suitable for agriculture. b. There are no bugs. c. The

    asked by Dianna on March 11, 2013
  97. Physics

    When land ice on Antarctica melts and flows into the sea, eventually it circulates and therefore distributes uniformly over the earth's oceans. As a result, does the earth's rotational speed increase, decrease or remain unaffected? (If it does have an

    asked by Bill on October 26, 2009
  98. physics!!!!

    A spaceship passes Earth at a speed such that γ = 112. A creature aboard the vessel does the Mongoian greeting dance that takes it 21 s (on its clock -- bought on a previous visit -- which is why it reads in seconds) to perform. How long will the

    asked by Jordan on November 30, 2009
  99. physics

    The radius of the Earth is approximately 6000 km. The acceleration of an astronaut in a perfectly circular orbit 300 km above the Earth would be most nearly. For this question I simply guessed. I knew "a" was 9.8 on the surface, and my answers were 0,

    asked by Hannah on January 20, 2008
  100. i really need help with science pls help

    The Hawaiian Islands are examples of islands that formed over a hotspot. Based on this information, which of the following processes formed the Hawaiian Islands? Melted rock called magma rose through holes in Earth's crust and gradually solidified as it

    asked by Oscar on April 15, 2016