Recent content by kuruman

Therein lies the rub. If you intend the students to use the interval kinematic analysis as a tool for answering conceptual type questions, i.e. no numerical calculations, then it's fine. If you want your students to calculate numbers, they will have to memorize one or more equations to use as a...

Here are my comments, since you asked. This approach is, of course, limited to cases where the acceleration is constant. Under constant acceleration, one has to solve the differential equation ##\ddot x = \text{const.}## and get two equations incorporating the initial conditions, $$\dot...

From a utilitarian point of view, how useful is your approach to formulate a mathematical description of physical events occurring around us? Take the simple case of two point masses ##m_1## and ##m_2## travelling in opposite directions and colliding elastically. You could use Dirac delta...

I don't know what that means. For example, an ice cube is a collection of water molecules in "condensed form." If I add enough heat to un-sustain the condensed form by converting the ice cube into steam, do the free H2O molecules constitute a wave? I am sure you will say no, so let's take...

So I googled "What is a wave?" and this is what I got. If you go by this more complete AI overview and not by what Wikipedia says, your question is answered.

And last but not least the pièce de résistance, a three double entendre lame joke with complete explanation. I take full responsibility for it. Why did the expectation values ##\langle \psi | H | \psi \rangle## and ##\langle \varphi | H | \varphi \rangle## change to ##H | \psi \rangle## and ##H...

What oscillation process?

This problem is on many websites and you can find an answer and explanation without looking too hard or having to subscribe or pay money to someone. I don't know if you have seen the solution and are asking for further clarifications or you are looking a starting point. In case it is the latter...

Why were ##x## and ##p_x## cited by the quantum traffic cop? [/Spoiler]

What do you call a recluse who runs an elevator?

Disclaimer The remainder of the lame physics jokes from my collection are rather esoteric and require familiarity with terms and/or concepts that one sees in an introductory quantum mechanics course. What do you call the average distance from the lecturer within which the audience yawns...

Only if they

What do you call a single native of Warsaw who sticks to refrigerator doors?

What did the doctor say to the patient whose skin could feel neither heat nor cold? [/spoiler]

What Mexican dish is prepared most efficiently? [/spoiler]