Recent content by Husker70

I'll try it thanks

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...

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

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...

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...

now on to the next ones Kevin

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

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

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

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

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

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

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

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

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