Recent content by Moazin Khatri

http://www.youtube.com/playlist?list=PLF56602BAC693237E This is a link to a YouTube Channel Viascience. Most of the time you'll see that there are two types of videos about Relativity and Quantum Mechanics on YouTube. 1. Math free and completely animated ones 2. University level lectures...

Yes sir. I understand that. But if any simpler basic level explanation can be provided I will be very grateful. I do understand some of the basic ideas of quantum mechanics. So if a simple explanation based on few basic ideas of quantum mechanics can be given I will welcome it.

If it comes from the decay of a down quark it has to come from the nucleus. And for some small time it will be in that region. And yes that's true that we detect it when it is outside the nucleus but still, the question remains, does it loose energy as it comes out of the nucleus because for...

First of all let me tell that I am a high school student and I have no background in particle physics. If we apply the Heisenberg's uncertainty principle to an electron confined in the nucleus it tells us that the energy of the electron must be something like 3.8X10^8eV .. but in a beta decay...

Yes. I got it. Thanks

@PeroK Case 1 => Force applied at the center I apply a force at the CoM of the pen. The impulse lasts about 1 second and the pen goes off in a straight line with no spin at all. Case 2 => Force at tip I'm assuming that Newton's laws can be applied to any object with any shape or size and at...

Thanks for your hint and advice. Yes I am already seeing it. I'll do a complete analysis and post it here for you to check it :) Thanks alot

Obviously the energy is given by my nudge. But suppose I give equal nudges. Or same force for the same period of time.

Yes I was talking about the over all CoM's movement. But in the rotating case my nudge has given the pen a spin and some energy consequently. So won't this be a violation of the conservation of energy? Because if, in both cases, the pens have equal linear momentum thus equal kinetic energy due...

Then is it true that whether I exert a force at the CM or at the very tip of the pen it doesn't make a difference? Will it still go with the same velocity?

Let's say I have a pen up in space in a zero g environment. And I carefully give the pen a nudge at the very tip of it. That's pretty away from the center of the mass of the pen. I know that will exert a torque and the pen will spin but I want to know whether its center of mass (along with the...

Good idea. Thanks

Hmm... Thank You

Thanks for your answer. Just clear one more thing .. Just to confirm If I have properly understood what you're saying... If instead of a baseball I use a physical arrow .. throwing it hard but no spin at all .. is it true that in its circular orbit there will come a time when the arrow will be...

Our moon rotates around Earth in such a way that we always see the same face. But Earth orbits Sun in a different way. It keeps spinning. My question is, If I were to go to space and put a basketball in a circular orbit around Earth in such a way that at the time I throw it a particular face is...