Recent content by noobphysicist

Thank you.

I see, interesting.

I see, and what if Planck's constant was not exactly zero, but just smaller? Would one still get "arbitrarily fine statistics"?

I just got to the chapter of Quantum Physics in this book for amateurs. A couple of questions: If Planck's constant was smaller than it actually is, then how the uncertainty principle be affected? What if Planck's constant was zero? ALSO: When you flip a coin, the outcome is uncertain. Does...

I was wondering if maybe you can expand a little on the equivalence principle and what it has to do with my example?

Well, here's the scenario I am particularly curious about: A riffle barrel and a laser point directly towards a target some distance away. Now, General relativity says that the bullet and the light experience the same downward acceleration during horizontal travel, yet the bullet hits...

I just found that mass is conserved because mass equals energy divided by c^2, and energy is always conserved, no?

Hmm, I s matter always conserved? Is mass always conserved? Is rest-mass always conserved? Is energy always conserved? are there any exceptions?

You shine two flashlights on a wall. Why don’t you see an interference pattern?

Well, what do you think? And why do you think what you think?

The most recent world population doubling has occurred in about 40 years. Suppose that the next doubling also occurs in 40 years, but that agricultural progress also manages to double food production. Then how many people will be starving 40 years from now, as compared to the numbers...

well, I did hand in what I had for this question, in hopes of part marks if anything. But I did attempt to solve for V and figured that since momentum is conserved, then it'd be 8 kg.m/s regardless? I'm probably off but thanks for all your help, Dick.

hmm, 8 kg.m/s?

hmm, easy then. Momentum = 0.5 x 16 Momentum = 8 m/s or 8 N? therefore, upon interaction with the ball, the girl will begin to slide 8 m/s or 8 N? what's the measurement unit then? my guess is m/s, right?

would the ball's momentum equivalent to its speed then (16 m/s)? Or would I need some sort of a formula to calculate the momentum? Sorry if this is becoming painfully obvious and I am unable to see it, I am the epitome of what my username suggests