A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

ttp://i1142.photobucket.com/albums/n608/nancylam67/25.jpg

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    We need to first find the angle that the hand will move, and from there we can convert to time elapsed To find the angle: the line along the circumference is given as 40pi the circumference's total length is 2*pi*r, or 120pi This means that the clock needs to travel 1/3 the length of the clock, or 120degrees 120 degrees relates to 1/3*12 hours = 4 hours. Therefore, the clock will explode at 10 +4 hours, or at 2:00

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    40pi=120 degree?

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no, 40pi/120pi gives you 1/3 of the circle, which is 120 degrees. This only happened because we had a radius of 60cm. If it were different, the degree would be different as well.

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how u get 120 degree?

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    40pi along the circumference out of 120pi total that's 1/3 of the way along the circumference That means that, out of 360 degrees (one full circle/circumference), we went 1/3 of the way: 1/3*360 = 120

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    http://i1142.photobucket.com/albums/n608/nancylam67/24.jpg

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 Attachment
  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 Attachment
  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    http://www.flickr.com/photos/62007598 @N03/5643605247/

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what tthis for?

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 Attachment
  12. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.