Recent content by Husker70

  1. H

    Solving Flow Rate Through Pipes with Pressure Difference

    I'll try it thanks
  2. H

    Solving Flow Rate Through Pipes with Pressure Difference

    Homework Statement A horizontal pipe 10.0cm in diameter has a smooth reduction to a pipe 5.00cm in diameter. If the pressure of the water in the larger pipe is 8.00x10^4Pa and the pressure in the smaller pipe is 6.00x10^4Pa, at what rate does water flow through the pipes? Homework...
  3. H

    How Is Pressure Distributed on the Upper and Lower Surfaces of an Airplane Wing?

    Thanks, hmmm. Don't know what to do with the mass F = PA so that is to be (7.00x10^4)(40.0m^2) x 2 = 5.6x10^6N I might need a clue from there. Thanks, Kevin
  4. H

    How Is Pressure Distributed on the Upper and Lower Surfaces of an Airplane Wing?

    Homework Statement An airplane has a mass of 1.60 x 10^4kg and each wing has an area of 40.0m^2. During level flight, the pressure on the lower wing surface is 7.00x10^4Pa. Determine the pressure on the upper wing surface? Homework Equations Newtons third law The Attempt at a...
  5. H

    Standing wave in string with four segments at 120 Hz

    Homework Statement A standing wave is established in a 120-cm-long string fixed at both ends. The string vibrates in four segments when driven at 120Hz. (a) Determine the wavelength (b) What is the fundamental frequency of the string? Homework Equations (a) Lambda = 2L/n The...
  6. H

    Phase difference of reflected sound waves in a hallway

    now on to the next ones Kevin
  7. H

    Phase difference of reflected sound waves in a hallway

    Thanks for being patient with me. LOL I'm about done with this class after going back to school 20 yrs ago. This chapter has been very tough. Thanks again, Kevin
  8. H

    Phase difference of reflected sound waves in a hallway

    When I carry the numbers correctly it works out to be .25364432 or 91.3 degrees Thanks, Kevin
  9. H

    Phase difference of reflected sound waves in a hallway

    It's starting to make more sense so going back we have 38.0m / 1.39m =27.338129496 number of waves. So they are out of phase by .338129496 or 121.7 degrees? Doesn't match the answer but I just want to understand the concept Kevin
  10. H

    Phase difference of reflected sound waves in a hallway

    I think that when it is a phase shift of 90 degrees it is pie/2 and 180 is pie 270 is 3pie/2 But I'm not sure how to use those to find any other fraction Kevin
  11. H

    Phase difference of reflected sound waves in a hallway

    I think that is where my problem understand is. I'm looking some more but I believe that if they differ one wavelength they are in the same phase as well as 12. I'm not sure though Kevin
  12. H

    Phase difference of reflected sound waves in a hallway

    Doc, I still don't understand can you give me a clue what to do with these numbers Thanks, Kevin
  13. H

    Phase difference of reflected sound waves in a hallway

    Thanks but I don't get this. I'm not sure what to do with this number
  14. H

    Phase difference of reflected sound waves in a hallway

    27.3 wavelengths. I got that but not sure where to put that to find phase difference. Thanks for the help. My brain isn't working this early Kevin
  15. H

    Phase difference of reflected sound waves in a hallway

    I am confused as I get the wavelength to be 1.39m from Lambda = v/f and path difference is 38.0m Are these the figures that I use Kevin
See more