Question

[Physics-Class X]The diagram in attachment shows a uniform metre rule of weight 100 gf being balanced on a knife edge placed at the 40 cmmark, by suspending a weight w gf at the mark 20 cm, find :(i) value of w(ii) resultant moment and its direction if weight w is moved to mark 30 cm.(iii) the position of another weight of 50 gf to balance the rule in part (ii).Requested Not to Spam/post copied answers otherwise to be deleted.Thanks in advance, :)•••♪​

Answer 1

Explanation:

Iodine is a chemical element with the symbol I and atomic number 53. The heaviest of the stable halogens, it exists as a semi-lustrous, non-metallic solid at standard conditions that melts to form a deep violet liquid at 114 degrees Celsius, and boils to a violet gas at 184 degrees Celsius. Wikipedia

Symbol: I

Atomic mass: 126.90447 u

Atomic number: 53

Electron configuration: [Kr] 4d105s25p5

CAS ID: 7553-56-2

Discoverer: Bernard Courtois

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