Question posted by wisdomlover
wisdomlover from School of home study
Questions Posted by wisdomlover
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| Bounty | Status | Category | Sub-Category | Question | Due | $5.00 | Closed, closed | Chemistry | Physical Chemistry |
oscillator strength
consider a conjugated chain of 2n C-atoms. We treat the π orbitals with the 1D partical in a box model. The box length is L=(2n+1)R where R is the average linear C-C distance. For 2n carbon atoms,... |
Apr. 15, 0000 | $5.00 | Closed, closed | Chemistry | Physical Chemistry |
electron density calculated from molecular orbital wavefunctions
 The electron density is defined as  N ∫Ψ*Ψ d(all coordinates except one electron position) Where N is the number of electrons. Because of the Pauli principle, it does not matter which... |
Apr. 15, 2012 | $3.00 | Closed, closed | Chemistry | Physical Chemistry |
quantum theory(electron in 1D)1
1) Calculate the position uncertainty delta X(average position) for states with high n(quantum bumbers). x^2 = integral from zero to L dx psi*(x) x^2 psi(x) - (L / 2)^2 2) How large is (delt... |
Feb. 08, 0000 | $3.00 | Closed, closed | Chemistry | Physical Chemistry |
quantum theory(electron in 1D)
1) Calculate the position uncertainty delta X(average position) for states with high n(quantum bumbers). x^2 = integral from zero to L dx psi*(x) x^2 psi(x) - (L / 2)^2 2) How large is (delta p)^2 ?... |
Feb. 09, 2012 | $2.00 | Closed, closed | Physics | General Physics |
Impulse-Momentum Theorem
Refer to Conceptual Example 3 as an aid in understanding this problem. A hockey goalie is standing on ice. Another player fires a puck (m = 0.17 kg) at the goalie with a velocity of +74 m/s. (a) If... |
Apr. 18, 2009 | $2.00 | Closed, closed | Chemistry | Physical Chemistry |
Heisenberg uncertainty
1) Calculate [X, Px] = ( X Px - Px X) to a function f(x) using the product rule when necessary (Px = - i(d/dx) 2) Next calculate [X Py] by applying it to a function f(x, y) Please comment on the... |
Feb. 08, 0000 | $1.50 | Closed, closed | Mathematics | General Mathematics |
inequalities
solve the inequalities, and graph the soltuion 1. x+3/x-2 >=0 2. 2x^2 +x-3 >=0 3. 4-x^2/x-3 |
May. 02, 2009 | $1.00 | Closed, closed | Physics | General Physics |
circuits59
a 15kohm resistor and a capacitor are connected in series, and then a 12v potential difference is suddenly applied across them. The potential difference across the capacitor rises to 5V in 1.3us a)... |
Mar. 09, 2011 | $1.00 | Closed, closed | Physics | General Physics |
instantaneous velocity and speed16
an electron moving along the x axis has a position given by x= 16te^-t m, where t is in seconds. how far is the electron from the origin when it momentarily stops? |
Sep. 10, 2010 | $1.00 | Closed, closed | Mathematics | Calculus |
trigonomeetric substitution, techniques of integration
find the area of the region bounded by the hyperbola 9x^2-4y^2=36 and the line x=3 Use trigonometric substitution to solve the problem |
Feb. 12, 2011 |
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