Recent content by skepticwulf

I think it's "classical" thinking that makes me think erroneously. One tends to think the ball comes into a complete halt at V=0, hangs there for intimately small -but for true- duration and THEN starts falling down. When you consider "there is nothing special about the zero speed", then it's...

Does that mean Velocity was 0 for 0 seconds? In other words, Velocity was never 0? Does that mean velocity came to 0 by every instant it approached to the top but NEVER became 0 and turned down immediately BEFORE being zero?

When we throw an object vertically , its speed decreases due to gravity and comes to a halt at the very top, V=0 and starts falling down. What can we say about that "halt" moment? Is it defined in terms of seconds? Does it last as long as Planck time? being the smallest measurement of time that...

We all know the famous theory that an asteroid hits the Earth and kill the dinosaurs by starting a chain reaction where the dust is all over the atmosphere preventing sunlight to reach plants causing them eventually to die thus causing herbivorous to die thus causing carnivorous to die. But when...

Thank you, it was comprehensive.

one thing can travel at certain distance, at "d", from nucleus regardless of its volume. it can not? my question is, inside a s orbit, do electron prefer designated areas more to the other like closer to shell rather than center OR do they distribute themlseves equally all the volume of sphere...

:) ok

Can we then safely assume the picture is false? there's no huge space between nucleus and first orbit of electrons but electrons can be anywhere in that particular s orbit filling the sphere? The reason I'm focusing on s orbits is s being the closest to the nucleus and is most relevant with...

We often read that atoms are mostly empty space. A common example is given as, if the atom was a big as a football stadium the nucleus would be as big as a tennis ball on the center and nearest electrons circling around at far side of seats or something like that. How does this reconcile with...

Thank you!, you're such a nice person.

Can you elaborate on that pls?

According to KMT, Avarage kinetic energy of 1 mole gas is=(3/2) x R x T So , in winter in my cold room , the gases have Kea=34J/mole (T=5oC) and in summer that figure climbs to, -roughly- 37J/mole, (T=25oC) Difference is , 3J per mole. If my rooms dimensions are 3m x 3m x 4m, volume is 36m^3...

Thank you.

In a general homework question I often encounter terms like "a wire of resistance R is stretched, what factor the power dissipated changes?" What exactly is this power dissipated ? Is it the one "wasted away" by heating up the wire due to the wire's resistance? or is it the power "used up" or...

Thank you.