Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

IsTim

  • 3 years ago

Simple dimensional analysis: To cancel out "s" in J/S, do I multiply or divide J/s by s? s in both cases are the same.

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

    This is part of a physics question, but I thought it was simple algebra, and deserved to be let free here.

  2. whpalmer4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    joules are kg m^2/s^2 \[J/s= \frac{{kg}*m^2}{s^2}*\frac{1}{s}=\frac{{kg}*m^2}{s^3}\] Right?

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

    I think this is extremely over-complicating the original intent of this thread...but...yes?

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

    Simply asking how to cancel out "s" in this situation.

  5. whpalmer4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Where are you canceling the s? Maybe with more context I can give you a better answer.

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

    In J/S

  7. whpalmer4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    They don't cancel out. J/s = watts, and watts are kg m^2 / s^3, just like I showed above.

  8. whpalmer4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Remember, dividing by s is equivalent to multiplying by 1/s.

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

    well, you know, the same well you can "remove" distance (m) in speed (m/s) to get time (t) by

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

    t=v/d? t=d/v?

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

    Man, can not realize I forgot this so fast.

  12. whpalmer4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    d = vt m = (m/s)*(s) m = m But there's no cancellation in J/s...

  13. 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