Cad
Most popular questions and responses by Cad
Chemistry
What is the empirical formula of caffeine (C8 H10 N4 O2)? How do I get it? Thanks
asked on February 10, 2011 
Calculus
Find the equation of a quartic polynomial whose graph is symmetric about the yaxis and has local maxima at (−1,1) and (1,1) and a yintercept of 1.
asked on April 3, 2011 
Biology
These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eightelement 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 
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 
Calculus
Can someone please tell me how to find the following integral? cos^4(2q)*sin(2q) dq
asked on September 3, 2011 
Biology
These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eightelement 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 
Calculus
Find the equation of a circle with center C(1,6) and tangent line xy1=0.
asked on July 29, 2011 
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 
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 
Derivatives
Find the derivative of g(t)=8t^2+9t at t=1 algebraically... g'(1)= _________
asked on February 14, 2011

Biology
Sorry didn't notice, now I saw it.
posted on September 3, 2011 
Biology
Thanks.
posted on August 31, 2011 
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