Recent content by windwitch

I personally used Spivak's calculus to self learn single variable calculus during the summer myself. I thought that it was a pretty good book, easy to learn from, but I don't really have any other calculus books to compare to.

Thank you very much for answering the questions so quickly XD (Oh and that signature of yours is brilliant)

Homework Statement When a ball hits a wall and comes back, it originally had a momentum P. However, when the ball comes back, it has a momentum of -P (as in going in the opposite direction.) According to the law of conservation of momentum, since the ball had an impulse of -2P, the wall must...

A stereogenic carbon is one that is attached to four different molecules. In the molecule you have shown, carbon 3 is attached to a hydrogen, hydroxyl, and two HOOCCHOH-s, and since the latter appear twice, it can not be a stereocentre. Keep looking :)

I live in Canada, and in here we have also issued a national Swine Flu vaccination. I can't help but agree that it is out of plain stupidity that the vaccination is being so widely issued. It is all political. If we do not issue a national swine flu vaccination plan, laypeople will believe...

Different carbon compounds have varying melting points so perhaps you melt carbon by placing a carbon compound in a container comprising carbon compounds with a higher melting point?

I completely agree with this poster. I believe that to learn science or math properly, you should be able to understand what you are doing. There should never be a moment when you are blindly using an equation, just because your givens just happen to fit into the equation. It is absurd...

I am going to ignore the current debate on the technicalities of the term "evolution," and its relation to individual members in a species, since this can be easily solved without further critique or encouragement. Now, I'd like to refer you to motor units and the alpha motor neuron in the...

My favourite introduction to biology textbook... Well, it would have to be Campbell Biology. I believe that it has the most information that any biology text can provide for beginning students interested in pursuing biology. Campbell explains biological concepts very thoroughly, and I can...

Well, a valence energy level is the number of shells present, and if you know how many electrons are in each valence shell, you can determine the amount of shells there are.

Try relating the stability of a molecule to the amount of potential energy it has when adding an electron to an already stable molecule.

Do not underestimate the amount of energy available in the bonds of water. If you conduct an experiment, you will be able to see that water is able to absorb and produce a large amount of heat in comparison to many other substances. From your equations alone, it seems that there are no...

When contemplating whether the reaction is first order or not, I would advise taking a graphical approach. Try to imagine what a graph would look like if the line had an equation of a first order reaction versus a second order reaction. Perhaps you may even want to try looking at the graphic...

Try taking a look at simulations or artistics renditions of different orbitals. It may give you a good idea of whether hybridized/unhybridized orbitals have symmetry. I would also suggest looking at orbitals present in molecules that have various different elements in it, rather then diatomic...

On the contrary, I am quite confident that the masses of electrons are always the same. It is the energy of electrons that changes. The only time in which electrons may seem to have different masses in different questions are when an unfamiliar unit of measurement is used, or a different...