Physics-
General
Easy
Question
Two identical mass m are connected to a massless string which is hung over two frictionless pulleys as shown in figure. If everything is at rest, what is the tension in the cord?
- less than mg
- exactly mg
- more than mg but less than 2mg
- exactly 2mg
The correct answer is: exactly mg
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Electrolysis of fused MgCl2
electrolysed is protected from atmospheric oxidation by a blanket of inert gases
In the hydrated chloride of Mg the value of of x is
chemistry-General
