This is a non-profit educational site. The intention is to help undergraduate students of physics and self-learners with a keen interest physics. The majority of the content has been written by myself working from my home in the village of Penkhull, England. (Hence the title.)
I am not a physics professor so I cannot guarantee that all the solutions I have given are correct! Where my answer differs from the book I say so and leave you to judge which is correct. If you notice any errors, or think I've got the physics all wrong, please let me know! I did study physics at college, but have pursued a different career path. I am now retired and my interest in physics has been re-kindled. It is one of my hobbies. I consider myself a mature student, or at best, an amateur physicist.
Not only has physics changed a lot since I was a student, but the available study resources have increased exponentially. Now AI has come along and it's a game changer, but I think my site still has some validity. It has been written from a student's perspective and I think my solutions reflect this. My approach has been completely different from AI, for each book I have studied a chapter and then answered the problems at the end using only the knowledge gained in that chapter or the preceeding ones. I also like to use helpful diagrams whenever possible. For problem solving in physics I regard AI as yet another tool in the toolbox, albeit an extremly powerful one.
If you have any comments about the site/solutions or contributions to make, please contact me at Penkhull Physics using the link below.
Note: If the link doesn't work in your browser email me directly at penkfizz@gmail.com
Many thanks for taking the time to look at my site and I hope you find it both helpful and useful.
John Cain
J D Cain