Recent content by samirgaliz

Yes the voltage changes Thanks to both of you. That makes sense. But why would there be a drop in potential? Is there an internal resistance within the generator itself so when a current is driven through the load the potential drops? I am assuming it is the resistance of the coil inside...

I am using a 1.5 V incandescent light bulb. I know that if I connect a 9V battery to it or any higher voltage, it will burn it due to the large current flowing through it (Ohm's law if V goes up then the current goes up as well assuming constant R). Now I a have a 12 V mini hydro generator...

Thank you Orodruin for you response. I am have difficulty visualising how this force is coming from the axis of the turntable. Any clarification would be appreciated.

Thank you.

Thanks Orodruin. I did think so but I can not figure out what the external torque is in this case.

A person standing on a stationary friction-less turntable spins a bicycle wheel with the rotation axis of the wheel in the horizontal direction, thus the initial angular momentum is in the horizontal direction (x - axis), say to the right. Now suddenly the person turns the axis of rotation of...

Thank you everyone! things are much clearer to me now.

Thanks to everyone who clarified this. My assumption is when the observer on the ground observes the moving clock in the rocket at the closest point, ignoring approaching or departing. That is ignoring Doppler effect. So this brings me to my next dilemma! If the observer on the rocket measures...

Please forgive me if this has been asked before. I understand that a clock that is moving relative to an observer at rest will slow down. If the moving clock is in a transparent rocket, would the stationary observer on the ground see the moving clock slow down physically?

Thanks Nugatory. My question is that in the moving decelerating frame where both twins are at a constant distance, why does the rear one experience more deceleration than the front one. I understand that their distance is not constant as seen by an observer in an inertial frame. I will check...

Why does the rear twin experience more deceleration than the front one? What if both were seat belted to chairs at a constant distance, then they both experience the same deceleration!

That was my original reason for this question, this contradictory situation when both frames come to rest!

Thanks to everyone and yes FactChecker, the assumption is that the distance between them remains constant wrt the decelerating frame. Sorry for not making it clear! Does the rear twin looks physically older than the front one when both frames reach the same speed?

Thanks FactChecker. Do the twins within the decelerating frame, disagree as well about their ages?

Thanks stevendaryl, that makes sense. I guess I missed the fact that the front twin decelerates later. So my other question is whether at the moment of deceleration, the twins do age differently in the moving frame?