xX_Supaman_Xx
Most popular questions and responses by xX_Supaman_Xx
Physics  Electricity
Can you please check my answers. 1) What carries energy through wire? electrons 2) What happens to some of the energy when it moves through the wire? becomes lost due to the movement of energy requiring some kinetic energy 3) If a resistance is large, why
asked on November 24, 2007 
French
What is the main linguistical difference between the phrases; 1. Je m'en vais and 2. J'y vais
asked on December 14, 2007 
chem
In the formation of sulfur hexaflouride, does the reaction at constant pressure or volume proceed more spontaneously? I've done the calcs to show that at constant volume, it is slightly more spontaneous, but I can't seem to find a good reason why... it
asked on January 28, 2008 
Mathematics
Solve the following differential equation, i.e. solve for y: dy/dx  y/x = 1/x + y + 1 I have this so far, 1. dy/dx= (y + 1 + xy + x)/x 2. x dy = (y + 1 + xy + x)dx 3. Integrate both sides... xy + c = xy + x + .5x^2y + .5x^2 + k where c and k are constants
asked on December 29, 2007 
Mathematics
Solve d/dx x(ln(x)1) I had: =d/dx xln(x)  d/dx 1 =d/dx ln(x)^x =x^(x1) [and this is wrong] Can someone show me the correct answer and working please?
asked on December 5, 2007 
French
Can the words "les hommes du maison" be translated to both "the men of the house" and "the men from the house" or just one of them?
asked on January 5, 2008 
drwls & Damon  maths
hey guys, i follow you up to the point of intergrating the final line. How would I intergrate [x^2.e^x] dx thx
asked on December 29, 2007 
MathsLogs
when writing log b to base a, (loga(subscript)b), can a be less than 0?
asked on November 23, 2007 
Chem
In thermodynaics, what is the relationship between enthalpy (H) and heat (q)  [at constant pressure]?
asked on January 27, 2008 
Mathematics
Differentiate ln(x)1 I have d/dx lnx1 = d/dx(ln x) d/dx1 = d/dx(ln x) = 1/x Could you tell me if this is right or not? If not, please suggest the right working out.
asked on December 4, 2007 
Reposted: Maths  Trig
I've been told that sin(c+h)=sin(c)xcos(h)+cos(c)xsin(h) but how? please explain
asked on December 2, 2007 
MathsTrig
How does sin(c+h)=sin(c)xcos(h)+cos(c)xsin(h) please explain
asked on December 1, 2007 
Physical Chemistry
In terms of bomb calorimetry, can one assume the temperature of the water surrounding the cmopartment is equal to the temperature within the compartment? If not, how would one determine T for the reaction occuring inside the compartment?
asked on January 26, 2008 
maths
how would i solve the differential equation dx/dt=kx^2 i.e. solve for x as a function of t. I've been told to rearrange the equation to yield dx/x^2=k dt but what can and should I do now?
asked on December 14, 2007 
Sport  Football
In FLAG FOOTBALL, how many players are allowed on the field at one time and what are their positions' names? Please help, I'm in Australia and Football just ain't as big as it is in some other countries.
asked on November 21, 2007

Math
d/dx x^2+3x = 2x+3
posted on December 5, 2007 
CHEM
HOCl forms from OCl + H+ and vice versa. the anion is hypocholrite (OCl). Given the attaching proton is positively charged and out of O and Cl, O is more nucleophilic (Cl has the highest electronegativity), the H will attach to the O atom making the
posted on November 10, 2007 
math
see my other response
posted on November 10, 2007 
math
diameter= sqr[(6^2+(2)^2)+(4^2+0^2)] therefore, radius= (sqr[(6^2+(2)^2)+(4^2+0^2)])/2 = ?
posted on November 10, 2007