Recent content by resurgance2001

The momentum of the robot is 95.0 x 1.4 m/s towards the platform. This must be equal and opposite to the momentum imparted to the beam. Dividing 133 kg m/s by 330.0 Kg gives a velocity of 0.403 m/s for the beam. So the relative velocity of the robot relative to the platform is 1.40 - 0.403 =...

Thank you

I have edited the question. That was a typo which I have corrected. Thank you

(112 x 8.36 + 122 x 8.51) - 235 x 7.59 = 190.89 MeV My question is what should I do about the incoming neutron on the left that starts the fission. My thinking is that it does not have any binding energy and therefore I left it out of the calculation. Is that correct? Thank you

If you are teaching yourself, I highly recommend the Open University course books for the course “The Physical World S207”. These are books which you can genuinely learn from and include all the answers to the exercises. They start at a very basic level but do build up to a good level by the...

Thanks - I can see that now. To find the equation of the ellipse in the original axes we actually need to use the inverse of the rotation matrix. Thanks again.

Thank you. I have now found one online resource which is dedicated to this specific topic which looks very useful. I will also check out the resource you have suggested.

Thank you. I would really like to see this in a text book. Can you recommend one please?

Thank you. Can you recommend a textbook which covers specifically the topic of rotated hyperbolic equations? Thanks again.

Thank you. Is there a textbook that you can recommend which covers this topic - specifically in relation to rotating hyperbolic equations? Thanks again.

when I apply the same rotation matrix to a simple vector I do get a counter clockwise rotation of 45 degrees. But when I try to do the same thing with the equation for the ellipse the rotation is clockwise. Is the mistake that what I have actually done is to rotate the axis? I am confused...

This is the answer I got originally from a really experienced A level chemistry teacher. This was the reason for my post because I don’t understand his answer. I am going to try writing out my own (revised) answer again. Unfortunately, I can’t find the original exam the question came from...

I have also just received this answer from someone. Is this answer correct? Or is it way off the mark? It sounds reasonable to me but I am not experienced enough to be certain it is correct.