Physics

Suppose there's a collison way out in the Oort cloud, say 30,000 AU away from the Sun. This collison causes one of the comets to alter its orbit and head almost directly at the Sun, such that the comet just skims the surface of the Sun and heads back out to its starting point. Assuming it can survive the intense heat that close to the Sun, how long will it take the comet to complete one orbit?

  1. 👍 0
  2. 👎 0
  3. 👁 102
  1. This calls for an easy application of Kepler's third law. With the semimajor axis (a) in a.u. and the period (P) in years,
    P^2 = a^3
    In this case, a = 15,000 au is the average distance from the sun, so
    P = 1.84*10^6 years

    http://en.wikipedia.org/wiki/Kepler's_laws_of_planetary_motion

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    Identify and describe the 3 main categories of trans-Neptunian objects. The three main categories of trans-Neptunian objects are Planetoids, the Kuiper Belt, and the Oort cloud. Planetoids are dwarf or minor planets, natural

    asked by Sara on February 16, 2010
  2. Science (Solar System)

    How are the Oort Cloud and Kuiper Belt different from each other?

    asked by DaniHat on June 28, 2011
  3. Astronomy

    Suppose we detect red photons at 674 nanometers emitted by electrons dropping from the n = 3 to n = 2 orbital in hydrogen. The hydrogen is in an interstellar cloud at 5,000 K. If the cloud were heated to 10,000 K, what would be

    asked by Emily on October 6, 2016
  4. science

    In the formation of the solar system nearly all of the mass of the solar nebula became ? Answer Are Terrestrial planets GAS giant SUN OORT CLOUD THANK YOU

    asked by snow on April 14, 2014
  5. Science

    1. Which of the following do the objects in the four categories of small objects in the solar system all have in common? a. they all orbit the sun b. they can all be found in the Oort cloud c. they all contain a nucleus d. they

    asked by that girl is posion on October 23, 2018
  6. science

    1. You observe a cloud at an altitude of 10,000 feet. This cloud name would have the prefix: a. Alto b. Cirro c. Strato d. Medial e. Nimbo answer: a 2. The cloud type that is best described as sheets or layers that cover much or

    asked by ~ on September 25, 2018
  7. science

    1. You observe a cloud at an altitude of 10,000 feet. This cloud name would have the prefix: a. Alto b. Cirro c. Strato d. Medial e. Nimbo answer: a 2. The cloud type that is best described as sheets or layers that cover much or

    asked by ~ on September 25, 2018
  8. HELP WITH SCIENCE FAST

    1.  Most likely, ____ were formed when lava from the moon's interior flooded bowl­like regions on the moon's surface. (1 point) maria* highlands craters basins

    asked by help on October 31, 2016
  9. AP Physics

    a ball of mass 3 kg is moving with a velocity of 10 m/s. This ball collides with a second ball of mass 0.5 kg that is at rest. After the collison, the first ball is at rest. What is the velocity after the collison of the second

    asked by Kailyn on October 18, 2011
  10. AP Physics

    a ball of mass 3 kg is moving with a velocity of 10 m/s. This ball collides with a second ball of mass 0.5 kg that is at rest. After the collison, the first ball is at rest. What is the velocity after the collison of the second

    asked by Kailyn on October 18, 2011

More Similar Questions