Light77

Members
  • Content count

    4
  • Joined

  • Last visited

  • Days Won

    1

Light77 last won the day on March 6

Light77 had the most liked content!

Community Reputation

3 Unknown

About Light77

Profile Information

  • Gender
    Male
  • Exams
    May 2018
  • Country
    United States
  1. It would be the sum of the fractional uncertainty in the distance (determined by the least count of the ruler) and the fractional uncertainty in time. For time, since you're analyzing a video played back, the least count would be determined by the number of seconds elapsed after each frame. For example, if the video was replayed at 100 fps, the least count = 1/100 fps = 0.01 s
  2. I was able to push my way through that last probability question. For the first part, all it was was setting the sum equal to one, and then solving for cos θ. Then they asked for tan θ which is just (sin θ) / (cos θ) and since you're already given cos θ, just solve for sin θ using sin2 θ + cos2 θ = 1. The harder part was the last one where you had to integrate it. The problem I got stuck on on Paper 1 was number 9, when they asked you to find the values of k.
  3. I'm from TZ1 and I actually thought Paper 2 was harder than Paper 1! But Paper 1 was still pretty hard especially question nine, which I found quite tricky. On Paper 2, I messed up on number 7 ("Find when the total distances are equal") and I blanked on number 10 ("Find when the distance between h(x) and y = x is maximum). Did anyone get 23:00 for the high tide question in number 8?
  4. That's a good start. Now you just need to simplify the complex fraction: