Recent content by trivk96

  1. T

    Find velocity of a moment before terminal velocity is reached?

    Homework Statement Given g = 9.8 m/s 2 . A sky diver of mass 69 kg jumps from a slowly moving aircraft and eventually reachesher terminal velocity 56 m/s. What was (the magnitude of) her acceleration at the moment her velocity was only v1 = 39 m/s (directed vertically down)? Answer in...
  2. T

    Half Reactions of Fe and CuSO4: Understanding Redox Chemistry

    Homework Statement What are the half reactions of Fe + CuSO4→ Cu + FeSO4 Homework Equations The Attempt at a Solution i think it is Fe→Fe2++ 2e- and Cu2++2e-→ Cu I don't know where the SO4 comes in. is it a spectator ion
  3. T

    Find wavelength of a quantum of electromagnetic radiation

    Thank You
  4. T

    Find wavelength of a quantum of electromagnetic radiation

    so in nm, it would be 1.414
  5. T

    Find wavelength of a quantum of electromagnetic radiation

    1.405109518e-16 J
  6. T

    Find wavelength of a quantum of electromagnetic radiation

    I did it again and i got 1.414E-8 ... and i think that is in meters. Am i right?? so that means that the answer is14.14nm ________________________________________________________________________ I used Plancks constant in eV's. Its on the ap equation sheet
  7. T

    Find wavelength of a quantum of electromagnetic radiation

    Yes i did convert it but i still got it wrong
  8. T

    Find wavelength of a quantum of electromagnetic radiation

    Homework Statement A quantum of electromagnetic radiation has an energy of 0.877 keV. What is its wavelength? The speed of light is 2.99792 × 10 8 m/s, and Planck’s constant is 6.62607 × 10−34J · s. Answer in units of nm Homework Equations E=hf v=fλ ... λ=v/(E/h) The Attempt...
  9. T

    What is the deviation angle in optics?

    Homework Statement I don't quite understand what deviation or the deviation angle is. Homework Equations ?? The Attempt at a Solution I have no idea what it is. Is it the angle that it enters the prism - the angle that it leaves the prism.
  10. T

    Examining Wave Displacement Along a Spring

    So it would be 1 right??
  11. T

    Examining Wave Displacement Along a Spring

    Homework Statement A wave is sent along a long spring by moving the left end rapidly to the right and keeping it there. The figure shows the wave pulse at QR - part RS of the long spring is as yet undisturbed.Which of the graphs correctly shows the relation between the original position x of...
  12. T

    Find grams of product using a balanced chemical equation

    Homework Statement 2KClO3 → 2KCl + 3O2 How many grams of potassium chloride are produced if 25 g of potassium chlorate decompose Homework Equations The Attempt at a Solution [SIZE="1"]25g * (1 mole KClO3/122.45 g KClO3) *(74.45g/ 1 mole KCl) =15.2 g KCl is this right??
  13. T

    What is the moment of inertia for a rod with an attached mass at the end?

    thank you
  14. T

    What is the moment of inertia for a rod with an attached mass at the end?

    Homework Statement Consider a rod of length L and mass m which is pivoted at one end. The moment of inertia of the rod about an end is Irod = 1/3 mL2. An object with mass m is attached to the free end of the rod. Find the moment of inertia of the system with respect to the pivot point...
  15. T

    Graphing Sin Functions: Calculator Tips and Tricks for y=sin(c(x-d))

    Thank you