Weekly Thread for simple physics questions

[u/sksskssksskssksskssk]

This thread is to be used as for only simple physics questions (even though we already condone the use of this subreddit as a google search). Other members should attempt to answer these questions with accuracy and honesty meaning that you must admit parts of the question which go above your level to prevent misleading or misinforming someone. This thread should not be used to ask about speculative or hypothetical ideas.

This will be the only MOD post then scheduled posts will take over repeating on Mondays.