a rod AB of length 5cm lies along the principal axis of the concave mirror of focal length 15cm in such a way that theend closer to the pole is 30 cm
5 Centimeters per Second (Collector's Edition) by Makoto Shinkai: 9781647293253 | PenguinRandomHouse.com: Books
![What is this copper, 5cm long thing? I thought a rivet of some sort? It is not threaded : r/whatisthisthing What is this copper, 5cm long thing? I thought a rivet of some sort? It is not threaded : r/whatisthisthing](https://preview.redd.it/26octl8z2ml21.jpg?width=640&crop=smart&auto=webp&s=58117e6cdf82fe6f5670b6a36abe252c6396633b)
What is this copper, 5cm long thing? I thought a rivet of some sort? It is not threaded : r/whatisthisthing
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