Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

darkb0nebeauty

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

    can u help me...

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

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

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

    ok so 10^-10m * 1000

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

    ok this wat i got = 1000000000000

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

    wait.. how did you get that huge number?

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

    i got t bye mulitplyn 10^-9*1000

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

    oh ok so the answer is 10^-6

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

    wait...

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

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

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

    so 100nm is that right

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

    Yes 100 nano meters :)

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

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

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

    Just post it then I might take a look :)

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

    I ment as a question :)

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

    im just thinking and trying to figure it out atm

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

    @skullpatrol

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

    which one

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

    haye can you please help.... @skullpatrol

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

    Any ideas?

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

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

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

    oh so 80 tmes 1/4 is 20

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

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

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

    oh ok so 20*1/4=5

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

    Yes.

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

    wait can you help me on the next three terms

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

    Just keep multiplying by 1/4...

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

    is that right

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

    are yall still there.@skullpatrol @tayluvsya

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

    @skullpatrol

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

    Correct.

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

    i really dont get so can you please help me

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

    What was the question?

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

    3

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

    so all of them are three is that alright

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

    Just like multiplying by 1/4 each time.

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

    To get the next term multiply by 3

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

    Yes.

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

    Yes.

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

    ok i have 3 more

  67. darkb0nebeauty
    • 3 years 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
    • 3 years 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

Sign Up
Find more explanations on OpenStudy
Privacy Policy