Recent content by giacomh

  1. G

    Accounting for DI Water during Titration

    So I've gotten close to the correct answer for this problem, but I think I'm accounting for the DI water incorrectly: In titrating a blank, 0.11 mL of sodium hydroxide solution was required to titrate 50.00 mL of DI water. It required 17.56 mL of the same sodium hydroxide solution to titrate...
    • giacomh
    • Thread
    • Accounting Titration Water
    • Replies: 1
    • Forum: Chemistry
  2. G

    What is the mass flux through a kidney?

    Homework Statement Water enters a kidney through a tube at 10 mL/min. It exits through a 6-mm-diameter tube at 20 mm/s.What is the rate of change of mass of water in the kidney? Homework Equations m=vpa q=va After conversions to meters V=.02 Q=.000167 A=(pi/4)*.006^2 = .0000282...
  3. G

    Fluid Mechanics- Pressure on a gate

    I believe that P is supposed to be perpendicular surface (opposing Fw)
  4. G

    Fluid Mechanics- Pressure on a gate

    Homework Statement http://imgur.com/vXkg0 Homework Equations Fw=γAH Ycp=bh3/(12)(h/2)b + (h/2) The Attempt at a Solution I found the angle of the gate from the horizontal to be 53.1 degrees. Using this, I found y to be 2.5m and H (vertical distance to centroid) to be 6 m...
  5. G

    Reaction Forces at A, B, & C in Beam ABC

    So they're both just equal to zero?
  6. G

    Reaction Forces at A, B, & C in Beam ABC

    Sorry, but how would I find any forces on the right side? Wouldn't my equilibrium equations just be: Fy= By+Cy=0 Mb=(10)(Cy)=0
  7. G

    Reaction Forces at A, B, & C in Beam ABC

    Homework Statement http://imgur.com/AjUdF Segments AB and BC of the beam ABC are pin connected a small distance to the right of joint B. Axial loads act at A and at the midspan of AB. A concentrated moment is applied at joint B. Find the reaction at A, B, and C. Homework Equations...
  8. G

    What is the minimum pressure in an evacuated tank half-filled with 40°C water?

    Homework Statement A tank half-filled with 40°C water is to be evacuated. What is the minimum pressure that can be expected in the space above the water? Homework Equations Vp water @ 40 degrees = 3.38 The Attempt at a Solution I would have just subtracted the vapor pressure...
  9. G

    Civil vs Mechanical Engineering: Deciding Between Environmental Majors & Minors

    So I'm interested in Environmental Engineering. I am a sophomore, and as of now, I'm interested in green buildings and possibly water resources. But really, I enjoy all things sustainability, and I would also go as far to say that I enjoy designing anything (whether its environmental-related or...
  10. G

    How Do Forces Act on Members in a Pratt Truss Bridge Design?

    Homework Statement I'm designing a pratt bridge for class that looks like this: http://www.garrettsbridges.com/photos/pratt-truss-bridge/attachment/pratt-truss-bridge-2/ I have a two dimensional drawing of one side of the bridge. 2. Homework Equations / 3. The Attempt at a Solution...
  11. G

    Method of Pins- Trusses (conceptual)

    Yeah, GH, HK, DG, and KL are all compressive
  12. G

    Method of Pins- Trusses (conceptual)

    Homework Statement I am designing a bridge that looks like this: http://imgur.com/zFsW7 and using the method of joints to find the tension in each pin. The bridge has to hold 10,000 lbs on each pin, and we have to find the maximum tension in each member (so tension of each member when...
  13. G

    Bridge design conceptual questions

    Actually, I guess what I'm asking is: how can I verify that my tensions are correct?
  14. G

    Bridge design conceptual questions

    Oops. Messed up equation for the moment. Also, should the members be in symmetry?
  15. G

    Bridge design conceptual questions

    Homework Statement I'm designing a Pratt Bridge (http://www.garrettsbridges.com/photos/pratt-truss-bridge/attachment/pratt-truss-bridge-2/). It must be able to hold 10,000 lbs at pins every 5 feet and be 40 feet long. 2. Homework Equations / 3. The Attempt at a Solution I know how to...