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Dec
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reviewed Approve suggested edit on Too small error on a physics lab
Dec
17
comment Too small error on a physics lab
@IanMateus ok, thank you. Could you confirm me that I haven't made mistakes in the derivations?
Dec
17
comment Too small error on a physics lab
@IanMateus the question it's all about error-propagation theory and formulas... so I have posted here to be sure to not have done mathematical mistakes..
Dec
17
asked Too small error on a physics lab
Nov
5
asked Mathematical step with complex number
Sep
22
comment Sinusoidal expression: how to find amplitude and phase
@AnonSubmitter85 omega yes, t is the indipendent variable and y is the dipendent variable..
Sep
22
asked Sinusoidal expression: how to find amplitude and phase
Sep
16
comment Center of mass of semi-sphere
Each moment calculated relating to a plane and divided for the total mass gives us one of the three coordinates of the center of mass, is it right?
Sep
16
comment Center of mass of semi-sphere
@RonGordon Many thanks for your tolerance!
Sep
16
accepted Center of mass of semi-sphere
Sep
16
comment Center of mass of semi-sphere
I'm so grateful for your answer! It is written with simple language and lets you feel the kind aspects of Math :) Just a question (let's see if I have understood the general proceeding!): an infinitesimal moment is given by area of the infinitesimal slice*distance of the infinitesimal slice to the plane; then I have to integrate and divide for the total mass of the solid. Is it right? And I have to choose the plane so that I can have the most comfortable situation. Is it ok? many thanks again!!
Sep
16
comment Center of mass of semi-sphere
This isn't an assignment (I don't go to school!). I'd want to understand how I have to proceed in similar cases. I said that I want to calculate the center of mass of a hemispere because I have started from this object. If you don't believe me, you can show me the proceeding step by step using another solid.. please, choose the solid that you prefer. I don't know the mathematical symbolism that you have used and I haven't "modelled" anything before.
Sep
16
comment Center of mass of semi-sphere
I haven't worked with similar things before. Could you show me, step by step, the entire proceeding? (I'm not a matematician!)
Sep
16
comment Center of mass of semi-sphere
@dfeuer a spherical solid
Sep
16
asked Center of mass of semi-sphere