Post a New Question

space/astronomy

posted by .

Rank the objects based on the strength of the gravitational force that would be felt by a spacecraft traveling at a distance of 10 AU from the center of each of the objects, from weakest to strongest.

1)red giant mass: 1Msun radius: 100Rsun
2)sun
3)white dwarf mass: 1msun radius: 0.01Rsun
4)black hole mass: 1msun radius: (event horizon) approx. 3 km

Please help me rank them, I though that it would be by the radius since as radius increases , gravitational pull decreases and the mass is the same i ranked it weakest to strongest 1,2,3,4 but i think the black hole is not supposed to be strongest since its 10 AU and its only strong at the event horizon.. please help!

  • space/astronomy -

    "as radius increases , gravitational pull decreases"
    This rule applies to measurements made at the surface of objects with the same mass.

    If we restrict ourselves to Newtonian mechanics, which should apply at 10 AU, and if the masses are all equal at 1M sun, the gravitational pull (on a relatively small space-ship) should be all equal, depicted by the Newton's law of universal gravitation:
    GMm/r².

  • space/astronomy -

    that doesnt apply at 10AU.

  • space/astronomy -

    all of the gravitational force would remain the same aka. all of them are the same because they are at the same distance 10AU
    I JUST DID THIS PROBLEM AS WELL
    got right

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. space

    What is the force of gravity at 220 miles above Earth's surface?
  2. Physics

    What is the force of gravity at 220 miles above Earth's surface?
  3. chem

    rank strongest acid to weakest acid? rank strongest acid to weakest acid H3CNH2 CH3C (triple bond) CH CH2=CHCH3 H20 CH4 i tried to rank them using the Pka values but I couldn't find the pKa value of the alkyne and I thought the H3CNH2
  4. Physics

    In mathematical language, Newton's Law of Gravity expresses the force of gravity, F, between two objects in the following way: F= (GMm)/r^2 where M is the mass of one object, m is the mass of the other object, r is the distance between …
  5. Physics

    On earth, two parts of a space probe weigh 18300 N and 4440 N. These parts are separated by a center-to-center distance of 5.11 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each …
  6. Physicis

    The gravitational force between two objects is 2,000N. They are moved so that the distance between them is four times the original distance. What is the new force between the objects?
  7. Physics

    On earth, two parts of a space probe weigh 17300 N and 3260 N. These parts are separated by a center-to-center distance of 19.4 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each …
  8. physics

    On earth, two parts of a space probe weigh 19200 N and 4130 N. These parts are separated by a center-to-center distance of 6.38 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each …
  9. Science

    Can someone please check my answers and if they are wrong can you help me fix them?
  10. Physics

    On earth, two parts of a space probe weigh 14500 N and 6400 N. These parts are separated by a center-to-center distance of 19 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each …

More Similar Questions

Post a New Question