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  1. A

    Physics Exam 2019 Questions Thread

    Could someone please explain the mechanics as to why this is A? I understand it has to do with Lenz's law but not sure how to approach it.
  2. A

    Physics Exam 2019 Questions Thread

    701.9nm
  3. A

    Fission and Fusion Energy

    Could someone please explain clearly where the energy is transformed from in both cases, just a bit foggy on the concepts as they both release energy from essentially opposite reactions.
  4. A

    CNO Cycle

    Yup, it isn't as complicated as I thought. Pretty logical haha
  5. A

    CNO Cycle

    I decided to learn the cycle anyway just then, it isn't as hard as I thought. Just know 12C-->13N-->13C-->14N-->15O-->15N then repeat. Whenever there is a change in nucleon number, hydrogen has collided and produced a gamma ray. Whenever there is isotope decay of proton to neutron, positron...
  7. A

    CNO Cycle

    Do we need to memorise the entire reaction such as isotope numbers and gamma ray/neutrino/positron emissions?
  8. A

    2019 Paper

    So what did everyone think of it?
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