How to calculate centre of mass?

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Why results of ROS flurescence are negative as there was no bacteria within?

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Why aren't most metal oxides insoluble in water?

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What is the ionic radius of Hydrogen anion? And how to know the exact ionic radii of the elements?

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Hello dear researchers. I would like to know what is a normalized mass in an EDX analysis?

EDX analisys

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Robert Istvan Radics

What would be the benefit of this calculation? The center of weight is somewhere in the nucleus of the oxygen.

Sankar Selvaraj

Dear Robert Istvan Radics,

I'm trying something new to do my research. It won't shareable, so please don't mistake me.

Mehdi Aliehyaei

Dear sir

You can use the static equilibrium static equation.