Recent content by Nachore

  1. N

    Molar Heat Capacities and Specific Heats for Ideal Gases

    I know \gamma = Cp/Cv and Cv = R/(\gamma - 1) How do I find n?
  2. N

    Molar Heat Capacities and Specific Heats for Ideal Gases

    Help?
  3. N

    Molar Heat Capacities and Specific Heats for Ideal Gases

    how do you do part d? does anyone know?
  4. N

    Molar Heat Capacities and Specific Heats for Ideal Gases

    yes, i got it. thanks
  5. N

    Molar Heat Capacities and Specific Heats for Ideal Gases

    Thanks for part b. But I don't get part c, d.
  6. N

    Molar Heat Capacities and Specific Heats for Ideal Gases

    Umm kind of. But I'm having the most trouble from part b through part d.
  7. N

    Molar Heat Capacities and Specific Heats for Ideal Gases

    Homework Statement a. Consider an ideal gas being heated at constant volume, and let Cv be the gas's molar heat capacity at constant volume. If the gas's infinitesimal change in temperature is dT, find the infinitesimal change in internal energy dU of n moles of gas. Express the...
  8. N

    Temperature & Pressure. Beginner Physics.

    Homework Statement A rigid, perfectly insulated container has a membrane dividing its volume in half. One side contains a gas at an absolute temperature To and pressure Po, while the other half is completely empty. Suddenly a small hole develops in the membrane, allowing the gas to leak out...
  9. N

    Calculating Line Integrals: Solving for Limits and Using Parametric Equations

    anyone? help?
  10. N

    Calculating Line Integrals: Solving for Limits and Using Parametric Equations

    Evaluate the line integral \int y^(2) dx + xy dy from A(1,0) to B(-1,4) with C: x = 1-t, y = t^(2), 0≤t≤2 I used: Do I make the limits from 0 to 2? What do I do with the A(1,0) and B(-1,4)? Please help? Thanks.
  11. N

    Approximating (24.5)^(1/2) + (9.5)^(1/2) using Differentials

    1. The problem Use Differentials to approximate (24.5)^(1/2) + (9.5)^(1/2). Compare your answer to your calculator's answer. Homework Equations I used z = (x)^(1/2) + (y)^(1/2) The Attempt at a Solution What I used: let z = (x)^(1/2) + (y)^(1/2) x = 25 y = 10 dx = 0.5 dy = 0.5...
  12. N

    Comparing Distance and Displacement in a Two-Child Race

    Two children start at one end of a street, the origin, run to the other end, then head back. On the way back Joan is ahead of Mike. Which statement is correct about the distances run and the displacements from the origin? a. Joan has run a greater distance and her displacement is greater than...
  13. N

    Can X-rays Cause Electrons to be Emitted from Gold Foil?

    thanks, i will cancel C and E, but could A be a potential answer?
  14. N

    Can X-rays Cause Electrons to be Emitted from Gold Foil?

    X-rays striking a piece of gold foil may cause: a. electrons to be emitted b. isotopes of gold to form c. addition of protons to gold atoms d. addition of neutrons to gold atoms e. nuclear transmutation of gold into another element I think the answer is a or c. Can someone help me? Thanks.
  15. N

    Undergrad How can I integrate this using partial fractions?

    take u = (x^5+2x^4+6x^3+12x^2+9x+18) du = 5x^4+8x^3+18x^2+24x+9 then take the numerator & cancel it out with du.