1. Physics

    Many astronomers argue that the Earth and Moon should be considered a double planet,since the gravitational force by the sun on the Moon is approximately as big as that by the Earth on the moon.Using the data below for the Earth and Moon at the particular

    asked by Abdurhman on January 21, 2017
  2. Physics Classical Mechanics

    A planet has a single moon that is solely influenced by the gravitational interaction between the two bodies. We will assume that the moon is moving in a circular orbit around the planet and that the moon travels with a constant speed in that orbit. The

    asked by Anonymous on October 21, 2013
  3. Physics

    Astronomers can calculate the mass of a planet by using the orbital parameters of one of its moons. Consider a hypothetical planet, which has a hypothetical moon that orbits the planet in a roughly circular orbit with a radius of 3.95*10^8 m. The moon

    asked by Emily on October 23, 2012
  4. physics

    On the way from a planet to a moon, astronauts reach a point where that moon’s gravitational pull transitions from being weaker than that of the planet to being stronger than that of the planet. The masses of the planet and the moon are, respectively,

    asked by anonymous on February 16, 2011
  5. Science

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

    asked by Love WINS on May 2, 2019
  6. physics

    Which of the following correctly describe the gravitational attraction between Earth and the Moon? -The Earth and the Moon exert equal size gravitational forces on each other. -The gravitational force of the Moon on the Earth is towards the Moon. -Both the

    asked by Emily on October 4, 2012
  7. Physics

    When a spacecraft travels from the Earth to the Moon, both the Earth and the Moon exert a gravitational force on the spacecraft. Eventually, the spacecraft reaches a point where the Moon's gravitational attraction overcomes the Earth's gravity. How far

    asked by Sam on October 13, 2012
  8. physics

    When a spacecraft travels from Earth to the Moon, the gravitational force from Earth initially opposes this journey. Eventually, the spacecraft reaches a point where the Moon's gravitational attraction overcomes the Earth's gravity. How far from Earth must

    asked by Garcia on October 4, 2012
  9. Physics

    On Earth, falling objects accelerate downward at 9.8 meters per second squared. But on another planet, the gravitational acceleration might be quite different. On the Moon, for example, a ball will accelerate at about 1.6 meters per second squared. How

    asked by Jerry Macfadden on May 15, 2011
  10. physic

    Hi,could anyone help me with this questin please. Thank you so much. some folks on your planet waant to travel to the moon.But what happens to their clocks, it they leave the Earth?for other bodies, like the moon or planets the acceleration due to gravity

    asked by Chan on November 20, 2009
  11. phy.

    check my understanding please. Larry weighs 300 N at the surface of the earth. what is the weight of the earth in the gravitational field of Larry? -would it still be 300 N an astronaugt lands on a planet that has twice the mass as earth and twice the

    asked by Julie on October 16, 2007
  12. Physics

    The mass of the Moon is 7.35x10 to the 22nd Kg. At some point between the Earth and the Moon, the for of Earth's gravitational attraction on an object is cancelled by the Moon's force of gravitational attraction. If the distance between Earth and the Moon

    asked by Renee =D on April 11, 2009
  13. Astronomy

    Calculate the ratio of the escape velocities from the moon and Earth. Calculate the ratio of the escape velocities from the moon and Earth In order to escape the gravitaional pull exerted by a central body on an orbiting object, it must must achieve a

    asked by Manny on April 10, 2007
  14. physics

    magine a straight line connecting the centers of the earth and the moon. At some point along this line the gravitational forces pulling a spacecraft towards the moon and towards the earth exactly balance each other, and the craft could just sit there in

    asked by peter on March 20, 2011
  15. WSU PHY

    The Moon causes tides because the gravitational force it exerts differs between the side of the Earth nearest the Moon and that farthest from the Moon. Find the difference in the accelerations toward the Moon of objects on the nearest and farthest sides of

    asked by WSU John Doe on June 26, 2012
  16. Physics

    The Moon causes tides because the gravitational force it exerts differs between the side of the Earth nearest the Moon and that farthest from the Moon. Find the difference in the accelerations toward the Moon of objects on the nearest and farthest sides of

    asked by Anna on June 26, 2012
  17. Physics

    You are flying to the Moon. Find the point at which the gravitational attractions of Earth and Moon on you will be equal and opposite. Given: radius of the moon: 1.74*10^6 m radius of the earth: 6.38*10^6 m orbital radius of the moon: 3.8*10^8 m Not enough

    asked by Katie on June 14, 2007
  18. physics

    Consider the Earth and the Moon as a two-particle system. (a) Find the gravitational field of this two-particle system at the point that is exactly halfway between the Earth and the Moon. (Assume a radial direction r̂ from the Earth to the Moon. Express

    asked by joy on February 16, 2018
  19. Physics

    The earth has about 80 times the mass of the earth’s moon. The gravitational force exerted on the moon by the earth has what relation to the gravitational force exerted on the earth by the moon? 1. the same as 2. zero; the earth exerts a force on the

    asked by Tiffany on January 18, 2015
  20. Physics

    The Earth is about 81 times more massive than the moon. During the gravitational interation of the Earth and the Moon, the magnitude of the gravitational force acting on the Earth _______ the gravitational force acting on the Moon. A) is greater than B) is

    asked by Anonymous on September 18, 2016
  21. Physics

    The mass of the Moon is 7.35 x 10^22 kg. At some point between Earth and the Moon, the force of Earth's gravitational attraction on an object is cancelled by the Moon's force of gravitational attraction. If the distance between Earth and the Moon (centre

    asked by Joanna on February 4, 2011
  22. Physics [Help, need answer in 10 min]

    During a solar eclipse, the moon (of mass 7.36 × 1022 kg), Earth (of mass 5.98 × 1024 kg), and Sun (of mass 1.99 × 1030 kg) lie on the same line, with the moon between Earth and the Sun. What gravitational force is exerted on the moon by the Sun? The

    asked by James on November 19, 2015
  23. Physics

    A spacecraft is on a journey to the moon. At what point, as measured from the center of the earth, does the gravitational force exerted on the spacecraft by the earth balance that exerted by the moon? This point lies on a line between the centers of the

    asked by A.S on February 7, 2018
  24. physics

    The physics of energy and Earth's moon as a satellite. The moon is an Earth satellite of mass 7.35 x 10^22 kg, whose average distance from the centre of Earth is 3.85 x 10^8 m. a) What is the gravitational potential energy of the moon with respect to

    asked by aly on April 24, 2011
  25. physics

    A spacecraft is on a journey to the moon. At what point, as measured from the center of the earth, does the gravitational force exerted on the spacecraft by the earth balance that exerted by the moon? This point lies on a line between the centers of the

    asked by Dee on February 12, 2013
  26. physics help please!

    A spacecraft is on a journey to the moon. At what point, as measured from the center of the earth, does the gravitational force exerted on the spacecraft by the earth balance that exerted by the moon? This point lies on a line between the centers of the

    asked by Hannah on February 10, 2011
  27. physics

    Suppose that the attraction between the moon and the earth were due to Coulomb forces rather than gravitational force. What would be the magnitude of the charge required if equal but opposite charges resided on both earth and moon? Mass of earth =

    asked by Andy on January 19, 2010
  28. science

    Astronomers know that the best time to observe stars is when there is a New Moon. The New Moon allows the astronomers to observe the stars when the Moon is 0% lit. How many days will the astronomers have to wait if the Moon phase is currently the one

    asked by huhuuh on October 11, 2018
  29. physics

    In the Earth–Moon system, there is a point where the gravitational forces balance. This point is known as the L1 point where the L stands for Lagrange, a famous French mathematician. Assume that the mass of the Moon is 1/81 that of the Earth. (a) At what

    asked by mymi on October 30, 2011
  30. phy.

    Larry weighs 300 N at the surface of the earth. what is the weight of the earth in the gravitational field of Larry? -force= GMm/d^2 would i set it up like force= (9.8m/s^2)(300 N)? an astronaut lands on a planet that has twice the mass as earth and twice

    asked by Julie on October 16, 2007
  31. Physics

    If the mass of a planet is 0.103 times that of the Earth and its radius is 0.592 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2. Answer in units of m/s2

    asked by Luhan on February 25, 2016
  32. Physics

    If the mass of a planet is 0.571 times that of the Earth and its radius is 0.787 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2. Answer in units of m/s2

    asked by Kate on October 29, 2013
  33. physics

    On the way to the moon, the Apollo astronauts reach a point where the Moon’s gravitational pull is stronger than that of Earth’s. Find the distance of this point from the center of the Earth. The masses of the Earth and the Moon are 5.98 × 1024 kg and

    asked by ally on January 23, 2019
  34. physics

    As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 9.8%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

    asked by Natasha on February 9, 2012
  35. physics

    As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 9.8%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

    asked by Natasha on February 11, 2012
  36. Physics

    As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 47.9%. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

    asked by Ryan C. on September 23, 2012
  37. Physics

    As a moon follows its orbit around a planet, the maximum gravitational force exerted on the moon by the planet exceeds the minimum gravitational force by 28.2 %. Find the ratio rmax/rmin, where rmax is the moon's maximum distance from the center of the

    asked by Danielle on October 15, 2012
  38. Physics

    A spaceship is on a straight-line path between the Earth and the Moon. At what distance from Earth is the net gravitational pull on the probe from the Earth and the moon zero? Mass of Earth = 6×10^24 kg. Mass of Moon = 7×10^22 kg. Can someone please

    asked by Yoyo on August 9, 2015
  39. Physics

    The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of

    asked by vanessa on February 22, 2018
  40. physic

    The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of

    asked by hy on November 21, 2010
  41. physics

    The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of

    asked by Dee on February 7, 2013
  42. physics

    The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force that the sun exerts on the moon is perpendicular to the force that the earth exerts on the moon. The masses are: mass of sun=1.99 × 1030 kg, mass of

    asked by BrookeNeed on September 29, 2016
  43. Physics

    Consider a space pod somewhere between earth and the moon, at just the right distance so that the gravitational attractions to Earth and Moon are equal. Is this location nearer Earth or Moon?

    asked by Anonymous on September 18, 2012
  44. PHYSICSS!!!

    still cant get this one? so damon i know you wanna help! or anyone else im open for suggestions haha 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

    asked by Rory still need help damon and others on December 26, 2007
  45. Physics

    A spaceship is on a straight-line path between the Earth and the Moon. At what distance from Earth is the net gravitational pull on the probe from the Earth and the moon zero? Mass of Earth = 6×10^24 kg. Mass of Moon = 7×10^22 kg. The distance from the

    asked by Yoyo on August 7, 2015
  46. Physics

    Just reposting. A spaceship is on a straight-line path between the Earth and the Moon. At what distance from Earth is the net gravitational pull on the probe from the Earth and the moon zero? Mass of Earth = 6×10^24 kg. Mass of Moon = 7×10^22 kg. The

    asked by Yoyo on August 8, 2015
  47. space

    What is the force of gravity at 220 miles above Earth's surface? Calculate how much of a g force the astronauts are actually experiencing. The solution for this math problem is a percentage. You can calculate it using the Algebraic equation: gr = R2/r2 x g

    asked by Annie on January 21, 2010
  48. Easy physics...having trouble with part b

    Moon effect. Some people believe that the Moon controls their activities. If the Moon moves from being directly on the opposite side of Earth from you to being directly overhead, by what percentage does (a) the Moon's gravitational pull on you increase and

    asked by Rodrick on May 2, 2014
  49. Algebra 2

    A large asteroid crashed into a moon of a planet, causing several boulders from the moon to be propelled into space toward the planet. Astronomers were able to measure the speed of one of the projectiles. the distance (in feet) that the projectile traveled

    asked by Nicole on February 18, 2015
  50. Physics

    Earth's moon is 3.8 X 10 8 m from the planet and is in freefall. Acceleration due to the Earth's gravity acting on the moon is 2.70X 10 -3. What is the moon's speed? How long does it take to make a complete orbit?

    asked by Julie on April 22, 2010
  51. Physics

    The average distance separating Earth and the Moon (center to center) is 384 000 km. Use the data in Table 7.3 to find the net gravitational force exerted by Earth and the Moon on a 3.00 multiplied by 104 kg spaceship located halfway between them (Earth

    asked by Anonymous on November 24, 2010
  52. physics

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon, and Earth are aligned with the Moon between the Sun and the Earth. (This

    asked by Amy on May 3, 2011
  53. Physics

    A spaceship is on a straight-line path between the Earth and the Moon. At what distance from (the centre of) Earth is the net gravitational pull on the probe from the Earth and the moon zero? Mass of Earth = 6×10^24 kg. Mass of Moon = 7×10^22 kg. The

    asked by Jim on August 14, 2015
  54. Physics

    The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force that the sun exerts on the moon is perpendicular to the force that the earth exerts on the moon. The masses are: mass of sun=1.99 × 1030 kg, mass of

    asked by Kristyn on March 29, 2015
  55. Physics

    The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force Fsm that the sun exerts on the moon is perpendicular to the force Fem that the earth exerts on the moon. The masses are: mass of sun = 1.99 × 10^30 kg,

    asked by Rash on September 28, 2018
  56. Physics

    Calculate the work done by planet X on its moon. Planet X applies a force of 5.6 x 10^10 N on its moon and the moon is 4.0 x 10^8 km away from the planet and it continues to circle the planet in a circular orbit of circumference of 2.5 x 10^9 m.

    asked by Marty on March 26, 2008
  57. Physics

    The Earth has a mass of 5.97 x10^24 kg and the Moon has a mass of 7.36 x10^22kg. The average distance between the center of the Earth and the center of the moon is 3.84 x10^8m. (a) How far away would the Moon need to be for the magnitude of the

    asked by Ellie on September 21, 2012
  58. physics

    The gravitational force that the sun exerts on the moon is perpendicular to the force that the earth exerts on the moon. The masses are: mass of sun=1.99 × 1030 kg, mass of earth=5.98 × 1024 kg, mass of moon=7.35 × 1022 kg. The distances shown in the

    asked by Kristyn on March 28, 2015
  59. physics

    The gravitational force that the sun exerts on the moon is perpendicular to the force that the earth exerts on the moon. The masses are: mass of sun=1.99 × 1030 kg, mass of earth=5.98 × 1024 kg, mass of moon=7.35 × 1022 kg. The distances shown in the

    asked by Kristyn on March 28, 2015
  60. Physics (please check!!!)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

    asked by Bon Oncle on April 28, 2011
  61. Physics

    From your intergalactic survey base, you observe a moon in a circular orbit about a faraway planet. You know the distance to the planet/moon system, and you determine the maximum angle of separation between the two and the period of the moon's orbit.

    asked by Megan on June 10, 2012
  62. physics

    Find the ratio of the gravitational force on the Moon due to the Earth to the gravitational force on the Moon due to the Sun. (The mass of the Earth is 5.97 1024 kg, the mass of the Moon is 7.36 1022 kg, the mass of the Sun is 1.99 1030 kg, and the average

    asked by Hard to solve ..please help!!!! on May 5, 2011
  63. physics

    Find the ratio of the gravitational force on the Moon due to the Earth to the gravitational force on the Moon due to the Sun. (The mass of the Earth is 5.97 1024 kg, the mass of the Moon is 7.36 1022 kg, the mass of the Sun is 1.99 1030 kg, and the average

    asked by HELP!!!! on May 3, 2011
  64. science. -_-

    Okk so im not asking for answers, i just need somone to expplain this homework to me! I don't get it what so ever. So the homework tittle is Weight in space. So it has a whole discripition in wjich i will write dpwn for you. The paper says: Gravity is an

    asked by Leslie:) on September 23, 2013
  65. Physics (please help!!!!)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

    asked by Bon Oncle on May 2, 2011
  66. Physics (please help!!!!)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

    asked by Bon Oncle on May 2, 2011
  67. Physics

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

    asked by Bon Oncle on May 2, 2011
  68. Physics (please help!!!!)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

    asked by Bon Oncle on May 2, 2011
  69. Physic

    Given that the distance between the Earth and the Moon is d = 3.84 􀀁 108 m, show that a satellite located exactly in-between the Earth and the Moon at a distance of 90% d from the Earth experiences no net force (at least when only the gravitational

    asked by Jorge on March 26, 2009
  70. Physics

    Given that the distance between the Earth and the Moon is d = 3.84 x 10^8 m, show that a satellite located exactly in-between the Earth and the Moon at a distance of 90% d from the Earth experiences no net force (at least when only the gravitational force

    asked by Jorge on March 26, 2009
  71. Physics

    A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this

    asked by Roberto on May 8, 2011
  72. Physics (please help!!)

    The moon causes tides because the gravitational force it exerts differs between the side of the Earth nearest the Moon and that farthest from the Moon. Find the difference in the accelerations toward the Moon of objects on the nearest and farthest sides of

    asked by Fernando on April 28, 2011
  73. physics

    a woman who weighs 150 lb. on earth would weigh 340 lb. on another planet, what is her mass on earth, what is her mass on the other planet, what is the magnitude of the gravitational field on the other planet

    asked by Brad on August 11, 2016
  74. Physics

    If you were located halfway between the Earth and the Moon, what acceleration would you have toward Earth? (Ignore the gravitational force of the Moon as it is much less than that of the Earth.)

    asked by Beth on December 2, 2018
  75. physics

    Calculate the magnitude of the gravitational force between the Earth and an m = 6.00 kg mass on the surface of the Earth. The distance to the center of the Earth from the surface is 6.37×103 km and the mass of the Earth is 5.98×1024 kg. B)Calculate the

    asked by Sara on March 22, 2013
  76. physics

    Using Newton's Law of Universal Gravitation, compare the gravitational pull of the Sun on the Earth to the gravitational pull of the Moon on the Earth. Constants: Mass of the Moon, M☽= 7.348E22 kg. Moon's semi-major axis, a☽= 3.844E8 m. You can find

    asked by Maria on November 16, 2011
  77. physics

    Somewhere between the Earth and the Moon, the gravitational pull exerted by these two bodies on a space pod would cancel. Is this location nearer the Earth or nearer the Moon? A) Nearer the Earth. B) Nearer the Moon. C) At the half-way point.

    asked by Anonymous on January 8, 2011
  78. Physics

    Some people believe that the Moon controls their activities. The Moon moves from being directly on the opposite side of Earth from you to be being directly overhead. Assume that the Earth-Moon (center-to-center) distance is 3.82 multiplied by 108 m and

    asked by Ray on November 9, 2009
  79. physics

    1. the average distance separating the Earth and the Moon is 384 000 km. Use the data table 7.3 to find the net gravitational force the eath and the moon exerts on a 3.00*10^4-kg spaceship located halfway between them. TABLE 7.3

    asked by becky on January 8, 2007
  80. Physics

    The orbital period of the moon about the earth is approximately 27.3 days. given that the average earth-moon distance is 384,000 kilometers, predict the moon's speed using the expression for centripetal force and the gravitational force, setting them equal

    asked by max on November 10, 2016
  81. Physics

    The moon Europa, of the planet Jupiter, has an orbital period of 3.55 days and an average distance from the center of the planet equal to 671,000 km. If the magnitude of the gravitational acceleration at the surface of Jupiter is 2.36 times greater than

    asked by Amzz on September 22, 2009
  82. Physics

    At the surface of a certain planet, the gravitational acceleration g has a magnitude of 12.0 m/s^2. A 21.0-kg brass bell is transported to this planet. What is (a) the mass of the brass ball on the Earth and on the planet, and (b) the weight of the brass

    asked by Luce on November 4, 2016
  83. Physics

    A spaceship of mass 175,000 kg travels from the Earth to the Moon along a line that passes through the center of the Earth and the center of the Moon. At what distance from the center of the Earth is the force due to the Earth twice the magnitude of the

    asked by Meder on February 24, 2013
  84. Physics

    A 2.1kg brass ball is transported to the Moon. a)What is the mass of the brass ball on the earth and on the moon? Wouldn't it be 2.1kg for the earth as well as for the moon? b)Determing the weight of thee brass ball on the earth. F_g=(G*m_ball*m_earth)/r^2

    asked by Andrea on November 12, 2007
  85. science

    The pull of gravity keeps the Moon in orbit around Earth. The distance between the Earth and Moon is about 380,000 kilometers. A crew of astronauts leaves Earth on a Monday and lands on the Moon on a Thursday. They land on the side of the Moon facing away

    asked by Bryan on February 2, 2012
  86. Physics

    please check these for me Which of the following is not a fluid? a. carbon dioxide b. hydrogen c. seawater d. wood D Which of the following statements is not correct? a. a fluid flows b. a fluid has a definite shape c. molecules fo a fluid are free to move

    asked by teamjakeward on February 15, 2009
  87. math

    An object's weight on the Moon is less than its weight on Earth. This is because the Moon exerts less gravitational force on an object than Earth does. The equation m = can be used to find an object¿s weight on the moon, where m is the object¿s weight on

    asked by nmng on April 5, 2011
  88. ap physics c

    Hi! I am struggling with this problem-- any help would be much appreciated-- thank you astronauts on their way to the moon reach a point --> at this point, the moon's gravitational pull becomes stronger than the earth's gravitational pull-----find the

    asked by APpreciative student on January 2, 2011
  89. Science

    If on earth you weigh 420 newtons, and the gravitational pull on the moon is 1/6 of what it is on earth. What would be your weight on the moon?? Please show work Thanks!! :)

    asked by Madelyn Santiago on September 4, 2012
  90. Calculus Physics

    Imagine a spaceship on its way to the moon from the earth. Find the point, as measured from the center of the earth, where the force of gravity due to the earth is balanced exactly by the gravity of the moon. This point lies on a line between the centers

    asked by danny on March 2, 2015
  91. Physics

    The average distance separating earth and moon is 384000 km. What is the net gravitational force exerted by earth and moon on a 3.00 * 10^4 kg spaceship located halfway between them.

    asked by Dee on November 1, 2011
  92. 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
  93. physics

    The moon is receding from the Earth by approximately 3.8 cm per year. Earth's mass is 5.98 x 10^24 kg, and its radius is 6.38 x 10^6 m. The Moon's mass is 7.3 x 10^22 kg, its radius is 1.79 x 10^6 m, and its orbital period around Earth is 27.3 days. The

    asked by Michelle on December 16, 2008
  94. Phsyics

    Determine the magnitude and direction of the gravitational force exerted a) on the Moon by Earth and b) on Earth by Moon.

    asked by g on December 18, 2012
  95. EARTH SCIENCE

    Cumulus and stratus clouds belong to which cloud group? A. Puffy clouds B. High clouds C. Middle clouds D. Low clouds Is it A? What is the basic cause of ocean tides? A. Gravitational force of volcanic activity B. Gravitational attraction between the Moon

    asked by Beatrice on January 25, 2014
  96. 11th grade Chemistry 1

    If your weight is 120 pounds and your mass is 54 kilograms, how would those values change if you were on the moon? The gravitational force on the moon is 1/6 the gravitational force on Earth.

    asked by Megan on August 24, 2010
  97. science double check answers

    1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A

    asked by katrina on December 1, 2016
  98. science

    1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A

    asked by katrina on December 1, 2016
  99. physics

    Suppose you had two small boxes, each containing 1.0 g of protons. (a) If one were placed on the moon by an astronaut and the other were left on the earth, and if they were connected by a very light (and very long!) string, what would be the tension in the

    asked by Jen on January 21, 2008
  100. Physics (please help)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Eart when the two forces are in direct competition, that is, when the Sun, Moon and Eart are aligned with the Moon between the Sun and the Earth. This alignment

    asked by Bon oncle on April 28, 2011