Cad

Most popular questions and responses by Cad
  1. Chemistry

    What is the empirical formula of caffeine (C8 H10 N4 O2)? How do I get it? Thanks

    asked on February 10, 2011
  2. Calculus

    Find the equation of a quartic polynomial whose graph is symmetric about the y-axis and has local maxima at (−1,1) and (1,1) and a y-intercept of -1.

    asked on April 3, 2011
  3. Biology

    These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of the atoms that make up

    asked on September 3, 2011
  4. Biology

    1. A medical scientist is designing an experiment to test the results of a new drug that she hypothesizes will greatly reduce and possibly eliminate the side effects of a new cancer treatment. If this experiment is to be set up correctly, she must (A)

    asked on August 31, 2011
  5. Calculus

    Can someone please tell me how to find the following integral? cos^4(2q)*sin(2q) dq

    asked on September 3, 2011
  6. Biology

    These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of the atoms that make up

    asked on September 3, 2011
  7. Calculus

    Find the equation of a circle with center C(1,6) and tangent line x-y-1=0.

    asked on July 29, 2011
  8. Chemistry

    What is the energy of a 425 nm photon? a) 2.82 x 10^-40 J b) 1.6 x 10^-27 J c) 4.67 x 10^-19 J d) 4.67 x 10^-28 J I don't get any of these answers. =S Please help...

    asked on March 25, 2011
  9. Chemistry

    What is the energy of a 425 nm photon? a) 2.82 x 10^-40 J b) 1.6 x 10^-27 J c) 4.67 x 10^-19 J d) 4.67 x 10^-28 J I don't get any of these answers. =S Please help...

    asked on March 25, 2011
  10. Derivatives

    Find the derivative of g(t)=8t^2+9t at t=1 algebraically... g'(1)= _________

    asked on February 14, 2011
  1. Biology

    Sorry didn't notice, now I saw it.

    posted on September 3, 2011
  2. Biology

    Thanks.

    posted on August 31, 2011
  3. Chemistry

    Oh, I made some mistake with the values... now I got 4.67x10^-19 well actually 4.68x10^-19 but that's not in the options... is this answer right?

    posted on March 26, 2011