Recent content by ah011

  1. A

    How fast must you travel to get to Sirius in 15.5 years?

    If you are referring to unit of measurement, then I honestly don't know how ly and y should be changed. I thought that this was correct way to solve it.
  2. A

    How fast must you travel to get to Sirius in 15.5 years?

    From the work, 0.61c was the result of dividing 9.5/15.5.
  3. A

    How fast must you travel to get to Sirius in 15.5 years?

    Question: Sirius is about 9.50 ly from Earth. To reach the star by spaceship in 15.5 y (ship time), how fast must you travel? Answer in terms of "c". 0.4843c and 0.6129c are incorrect Relevant Equations and Constants: Attempt at solution: Can anyone help out I really don't know what...
  4. A

    What is the minimum number of Polarizers needed

    Can anyone reply this question is making me tear my hair out
  5. A

    What is the minimum number of Polarizers needed

    Homework Statement A polarized light is incident on several polarizing disks whose planes are parallel and centred on common axis. Suppose that the transmission axis of the first polarizer is rotated 25° relative to the axis of polarization of the incident light, and that the transmission axis...
  6. A

    Struggling with Introductory Physics? Join the PF Discussion for Help!

    I am a student taking General Physics and can really use help with the thread I posted at the Introductory Physics page.