Physics (please help)

posted by .

A planet is in circular orbit about a remote star, far from any other object in the universe. Which of the following statements is true?
a. None of the other statements are true.
b. There is only one force acting on the planet.
c. There are two forces acting on the planet and their resultant is not zero.
d. There are two forces acting on the planet and their resultant is zero.

I'm not sure of this question... I say it's c... can someone please help me with this?

  • Physics (please help) -

    b. The only force acting on the planet is the gravity due to the star.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. thermodynamics

    Which of these statements are in accord with the three laws of thermodynamics?
  2. physics

    A satellite has a mass of 5850kg and is in a circular orbit 4.1*10^5m above the surface of a planet. The period of the orbit is two hours. the radius of the planet is 4.15*10^6m.What is the true weight of the satellite when it is at …
  3. physics

    a 9.9*10^23 kg planet orbits a star in a circular orbit. The planet is 5.6 AU away from the star and has an orbital velocity of 32 km/s. What is the mass of the star. (1AU = 1.496*10^11m)
  4. physics

    Astonomers discover a new planet orbiting a fixed point in space, but for reasons unknown, they can't directly observe a star where one is expected. The radius of the orbit is measured to be 1.85 x 10^8 km, and the lone planet completes …
  5. PHYSICS PLEASE HELP

    A satellite has a mass of 5850 kg and is in a circular orbit 4.50 x 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20 x 10^6 m. What is the true weight of the satellite when …
  6. physics

    A planet orbits a star once every 3.14x10^7 s in a nearly circular orbit of radius 1.51x10^11 m. (a) With respect to the star, determine the angular speed of the planet b) With respect to the star, determine the tangential speed of …
  7. Physics

    A satellite has a mass of 6179 kg and is in a circular orbit 4.83 × 105 m above the surface of a planet. The period of the orbit is 2.4 hours. The radius of the planet is 4.03 × 106 m. What would be the true weight of the satellite …
  8. physics

    A planet orbits a star, in a year of length 4.46 x 107 s, in a nearly circular orbit of radius 3.17 x 1011 m. With respect to the star, determine (a) the angular speed of the planet, (b) the tangential speed of the planet, and (c) …
  9. Math

    please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn:   12 + 42 + 72 + . . . + (3n - 2)2 = n(6n^2-3n-1)/2 …
  10. Computers (RAM)

    Just giving this a shot, Which of the following statements about RAM are TRUE?

More Similar Questions