Recent content by Omnistegan

  1. O

    Finding mass of a central body: centripetal forces and orbiting bodies

    Homework Statement One stellar mass is defined as the mass of our sun (1Ms = 1.99 x 1030 kg). ONe astronomical unit is defined as the length of Earth's semi-major axis (1AU = 1.49 x 1011 m). The star Epsilon Eridani in the constellation Eridanus has a planet (discovered in 2000) orbiting it...
  2. O

    Kinematics, given only vi vf and d

    d certainly is 0. The question is exactly as I have above. My impression was that this question resembled the vertical component of a projectile motion question. Up and back down, 0 displacement.
  3. O

    Kinematics, given only vi vf and d

    Kinematics, given only "vi" "vf" and "d" Homework Statement I have a hunch this problem is impossible with the given information. Using the given information, solve for a and t. vi = 7.185m/s vf = -7.185m/s a = ? d = 0m t = ? Homework Equations Not sure, I think this would be correct...