2022 (source code)
= 2022
{scope}
{title2=A13481W1}
Source: https://www.whatdotheyknow.com/request/oxford_physics_past_papers_2/response/2340696/attach/10/Physics%20Papers%202021.pdf?cookie_passthrough=1
Source bundle pages 71–75. The cover establishes 2022 despite the attachment filename. Throughout these solutions the <metric signature> is $(-,+,+,+)$, as fixed by the source's lowered time coordinate. Question 2 uses $c=1$. Signs and additional assumptions needed by particular printed conclusions are explained where they arise.
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