Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

darkb0nebeauty

  • one year ago

Ultraviolent rays, which cause sun burn by penetrating only the top level of kin, have a wavelength about 1000 times the wavelength of an X-ray. Find the wavelength of ultraviolent rays. Show your work.

  • This Question is Closed
  1. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Medical X-rays, with a wavelength of about 10 ^-10m, can penetrate completely through you skin.

  2. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can u help me...

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

    Why don't you just multiply the wavelength of an X-ray with 1000 in order to get the wavewength of a UV ray?

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

    Not sure, but sounds like that it is only that.

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

    beside we know that X-rays have a wavelength on about 100 nano meter.. if we take 10^-10 meter and convert to nano meters.. we get 0.1 nm. Multiply that with 1000 and you get 100 nm.

  6. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok so 10^-10m * 1000

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

    if I had to guess, yes. Because we know the multiplication factor and one of the wavelengths. However if I were you I would calculate in nano meters. nano = 10^-9

  8. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok this wat i got = 1000000000000

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

    wait.. how did you get that huge number?

  10. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i got t bye mulitplyn 10^-9*1000

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

    I doubt that. Lets do it in the head: \[10^{-9}*1000=10^{-9}*10^{3}=10^{-9+3}=10^{-6}\]

  12. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok so the answer is 10^-6

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

    wait...

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

    it was not 10^-9 but 10^-10

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

    \[10^{-10} m*1000=10^{-10} m *10^{3}=10^{-10+3} m=10^{-7} m\] \[10^{-7} m * 10^{9} \frac{ nm }{ m }=100 nm\]

  16. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so 100nm is that right

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

    Yes 100 nano meters :)

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

    I think. not 100% sure if the procedure is right... seems to esay for some reason.

  19. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok so 100nm, can you help me with another one

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

    Just post it then I might take a look :)

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

    I ment as a question :)

  22. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Consider the sequence 2, 6, 18, 54…. Let n= the term number in the sequence. Let A (n) = the value of the nth term of the sequence. 4. What is the common ratio of the sequence? Common ratio: 5. Complete each statement. a. A (1) =2=2*3^? b. A (2) =6=2*3=2*3^? c. A (3) =18=2*3*3=2*3^? d. A (4) =54=2*3*3*3=2*3^? 6. What is the relationship between the exponent of the base 3 and the value of n? 7. Complete the statement: A (n) = 2*3^?

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

    Hmmm I think you need to post this as a seperate question, not sure I fully understand the question.

  24. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Activity 2 Consider the sequence 2, 6, 18, 54…. Let n= the term number in the sequence. Let A (n) = the value of the nth term of the sequence. 4. What is the common ratio of the sequence? Common ratio: 5. Complete each statement. a. A (1) =2=2*3^? b. A (2) =6=2*3=2*3^? c. A (3) =18=2*3*3=2*3^? d. A (4) =54=2*3*3*3=2*3^?

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

    I just ment i don't understand the way they put it... I'm not from the US so I have to translate the words back and forth, and when I do so I get something that don't make sence. All I can say is that you can discribe your function/seq as this: A(n)=2*3^n, n belongs to all whole positive numbers.

  26. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, is that is that all you get. @Frostbite wat bout you @aspenfields

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

    im just thinking and trying to figure it out atm

  28. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    haye ca you put that work back to the first one please...@Frostbite

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

    @skullpatrol

  30. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok while we are waitin for that one can u help me with this other one...please!!!

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

    which one

  32. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A. What is the common ratio of the sequence 80, 20, 5, 5/4…? Common ratio: B. What are the next three terms in the sequence? Next three terms:

  33. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    haye can you please help.... @skullpatrol

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

    Any ideas?

  35. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok are you going tew help me on the first one or the next three term, but with the first one o idea and the second one i do i have 1 idea

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

    What number do you need to multiply by 80 to get 20?

  37. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you cant muliply anything by 80 to get 20 but 20*4 is 80

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

    How about $$\frac{1}{4}$$

  39. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh so 80 tmes 1/4 is 20

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

    $$80*\frac{1}{4}=20$$

  41. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh ok so 20*1/4=5

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

    Yes.

  43. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks so much ok so can you help me on the other one now.... the first one or do you want me to post it up there

  44. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait can you help me on the next three terms

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

    Just keep multiplying by 1/4...

  46. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok is the next term 5/16, then 5/64, then 5/256

  47. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    is that right

  48. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    are yall still there.@skullpatrol @tayluvsya

  49. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @skullpatrol

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

    Correct.

  51. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so i did it right. ok so can you help me on the first one

  52. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i really dont get so can you please help me

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

    What was the question?

  54. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Activity 2 Consider the sequence 2, 6, 18, 54…. Let n= the term number in the sequence. Let A (n) = the value of the nth term of the sequence. 4. What is the common ratio of the sequence? Common ratio: 5. Complete each statement. a. A (1) =2=2*3^? b. A (2) =6=2*3=2*3^? c. A (3) =18=2*3*3=2*3^? d. A (4) =54=2*3*3*3=2*3^?

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

    What do you have to multiply 2 by to get 6?

  56. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    3

  57. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so all of them are three is that alright

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

    Just like multiplying by 1/4 each time.

  59. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok that i dont get can you please help me i have to turn this in before 12:30

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

    To get the next term multiply by 3

  61. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so a. 6 b.18 c.54 d. 162 is that right

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

    Yes.

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

    The whole idea behind these type of questions is to answer: "what do I need to multiply by to get the next term"? and then continue using that number.

  64. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so what i got up there are those the right answers....

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

    Yes.

  66. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok i have 3 more

  67. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    actually it comes along with it, look back up with the one we just worked out and it says the common ratio, is the ratio times 1/4 or what

  68. darkb0nebeauty
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    haye wat happened @skullpatrol

  69. 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.