Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

stupidinmath

  • one year ago

intensity of light from bulb is inversely proportional to the square f the distance s from the bulb. if i=90w/m^2 when the distance s=20m, find the itensity at a distance of 10cm/

  • This Question is Closed
  1. stupidinmath
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    formula is .. i=k(1/s) right or not?

  2. stupidinmath
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    and k=90x20 or k= 1800.. ?

  3. stupidinmath
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    and.. i sub 2 = 180 w/m^2?

  4. stupidinmath
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    please correct. :)

  5. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay walk me through this step by step I think there is something missing here I want to be sure.

  6. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I sub 2= 180? I though it was 1800?

  7. stupidinmath
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @godorovg : i sub 2 = 1800 / 10 so.. 180? am i wrong?

  8. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no you are right

  9. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You didn't post i sub 2=1800/10 before that was why I thought it was wrong.

  10. stupidinmath
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah? oh, ok! Thank you so much! ;D

  11. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no problem I try to teach not give answers I hope I have helped you

  12. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and you are not stupid in math.

  13. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    just say because I know I use to feel that way as well, but I can tell you now I am pretty good in math because I learned how math works and I have faith my math skills. Math takes getting your hands dirty and working problems trust me this works..

  14. stupidinmath
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it made me sure though :)) yeah, i agree~ haha thanks, again.

  15. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    your welcome and if you need help again let me know :)

  16. godorovg
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    gave you a medal

  17. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.