two blocks of masses 2kg and 4kg are connected by a massless string which is just taut. Now two forces 3N and 14N are applied on blocks.The tension in the string .
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two blocks of masses 2kg and 4kg are connected by a massless string which is just taut. Now two forces 3N and 14N are applied on blocks.The tension in the string .
= 20/3
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Sodium and potassium are soft metal
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Alkali metals in the periodic table are placed at the extreme left. They grouped number I or IA. Alkali metals having only one valence electron and large atomic size. hence, they have more space between atoms so weak metallic are formed. Due to the presence of weak metallic bond, alkali metals are soft and can be cut with a knife easily.
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