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seen Apr 17 at 13:29

Sep
28
comment Pendulum Hits a Mass and Spring
It's not entirely clear what the situation is. Could you explain in more detail where the mass, spring and pendulum begin, or provide a picture?
Sep
3
awarded  Popular Question
Aug
25
awarded  Yearling
Aug
16
comment What is the maximal height for a water rocket's flight?
Thanks, but the part of the question I find especially is determining $\mathbf{u}(t)$ and $\mathbf{v}(t)$.
Aug
16
comment What is the maximal height for a water rocket's flight?
@Johannes Here I meant it to mean 'initial'. I'll edit for clarity.
Aug
16
revised What is the maximal height for a water rocket's flight?
added 4 characters in body
Aug
16
comment What is the maximal height for a water rocket's flight?
@Johannes Yes, as the water cannot move further up than the top of the cylinder.
Aug
16
revised What is the maximal height for a water rocket's flight?
deleted 1 characters in body
Aug
16
revised What is the maximal height for a water rocket's flight?
deleted 1 characters in body
Aug
16
revised What is the maximal height for a water rocket's flight?
deleted 1 characters in body
Aug
16
revised What is the maximal height for a water rocket's flight?
added 314 characters in body
Aug
16
comment What is the maximal height for a water rocket's flight?
@RedGrittyBrick No (is the wording particularly wooden?). I'll add them.
Aug
16
revised What is the maximal height for a water rocket's flight?
edited title
Aug
16
asked What is the maximal height for a water rocket's flight?
Jul
15
comment A rope attaches the Moon to the Earth. What happens?
@WetSavannaAnimalakaRodVance It is true; the edit was due to the (surprising) failure to realise the irrelevancy of a real string breaking. However, surely if option 1 were to occur, the distance between their COM would decrease with time?
Jul
14
awarded  Nice Question
Jul
14
revised A rope attaches the Moon to the Earth. What happens?
added 124 characters in body
Jul
6
comment A rope attaches the Moon to the Earth. What happens?
@dmckee You're right. I really meant 'ignore any effects of the moon's axial rotation' (i.e. assume the string is attached to the moon's centre and can move through the Moon without resistance).
Jul
6
revised A rope attaches the Moon to the Earth. What happens?
added 22 characters in body
Jul
6
awarded  Nice Question