How do I calculate the tension in a rubber band? How do I calculate air resistance in a projectile motion question?

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put on hold as too broad by Aaron Stevens, M. Enns, Qmechanic yesterday

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    Welcome to Physics SE! These are two separate questions. Can you please reduce this down to a single question. What would also help is if you added more detail and specifics to the question as well. – Aaron Stevens yesterday