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visits member for 1 year, 3 months
seen May 3 at 15:14
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Apr
14
comment Dynamics question. Please help, exam coming soon
@Qmechanic You're right. I cannot think of a succinct title, can you?
Jun
29
revised A problem on mechanical energy and friction
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Jun
29
revised A problem on mechanical energy and friction
added 1 characters in body
Jun
29
revised A problem on mechanical energy and friction
added 999 characters in body
Jun
29
revised A problem on mechanical energy and friction
added 83 characters in body
Jun
29
revised A problem on mechanical energy and friction
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Jun
29
asked A problem on mechanical energy and friction
Jun
29
comment In hydrostatics, is it possible for the bouancy to be greater than the weight of a body?
Oh, sure it was!
Jun
29
awarded  Scholar
Jun
29
comment In hydrostatics, is it possible for the bouancy to be greater than the weight of a body?
I don't follow that last hint =/. I've determined $T=0,08N$, though.
Jun
29
accepted In hydrostatics, is it possible for the bouancy to be greater than the weight of a body?
Jun
29
comment In hydrostatics, is it possible for the bouancy to be greater than the weight of a body?
I didn't mean I couldn't draw the FBD. I think I get what you mean - I can consider $T_2+B_2-W_2=0$ for body $1$. Ideal conditions will ensure $T_1=-T_2$.
Jun
29
comment In hydrostatics, is it possible for the bouancy to be greater than the weight of a body?
But is it legitimate to "separate" the system? If the rope is cut, $1$ will probably float upwards, and $2$ will sink, I suppose.
Jun
29
comment why is dark matter the best theory available to explain missing mass problems?
@Argus Some empiric evidence has been collected in favour of the dark matter theory. In fact, a specialist even created a "map" of the possile distribution of dark matter in our galaxy, or some bounded space near us, by certain measurements involving light waves and how they were bent by the gravitational field of dark matter. Make some research.
Jun
29
asked In hydrostatics, is it possible for the bouancy to be greater than the weight of a body?
Jun
22
revised Gravitation and equilibrium (…and similar problems)
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Jun
22
comment Gravitation and equilibrium (…and similar problems)
I got it. Thanks.
Jun
22
awarded  Commentator
Jun
22
comment Gravitation and equilibrium (…and similar problems)
Right. by the way, this is from an introductory course from an university (a basic common course for the exact sciences and engineering factulty.).
Jun
22
comment Gravitation and equilibrium (…and similar problems)
Should I be using Newton's Second Law?