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Nov
14
awarded  Popular Question
May
18
asked Way to have inutition about the shape of a curve?
Oct
16
awarded  Scholar
Oct
16
accepted Finding the center of gravity/mass of half of an empty cylindrical shell
Oct
3
comment Finding the center of gravity/mass of half of an empty cylindrical shell
Forgive me, but you lost me when you began calculating h2. Here is where my mind is: Why is it necessary to calculate a moment? What does dividing "the moment about the x-axis by the circumference of the rounded part of the semicircle" do? Maybe you can tell from these questions where/why I'm not understanding the big picture. Thanks!
Oct
2
revised Finding the center of gravity/mass of half of an empty cylindrical shell
deleted 251 characters in body
Oct
2
revised Finding the center of gravity/mass of half of an empty cylindrical shell
added 123 characters in body
Oct
2
revised Finding the center of gravity/mass of half of an empty cylindrical shell
added 123 characters in body
Oct
2
asked Finding the center of gravity/mass of half of an empty cylindrical shell
Jun
26
revised Comparing and contrasting equations and functions
added 83 characters in body
Jun
26
comment Comparing and contrasting equations and functions
I don't see how your answer for d is explained by your answer for b. Wouldn't having a polynomial equal a constant be an equation, which would mean that only some values would satisfy/solve the equation? I asked the question the way I did to try to get clarification on the wording of the text I quoted from the linked post. Specifically where he says that a line parallel with the z axis would not intersect the surface exactly once for f(x,y,z)=const., but it would for z=f(x,y).
Jun
26
awarded  Editor
Jun
26
revised Comparing and contrasting equations and functions
added 66 characters in body
Jun
26
awarded  Student
Jun
26
asked Comparing and contrasting equations and functions