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HomeFlame InstituteQuestion Bank27. When a ceiling fan is switched off, its angular velocity falls to half while it makes 36 rotations. How many more rotations will it make before coming to rest (Assume uniform angular retardation)

27. When a ceiling fan is switched off, its angular velocity falls to half while it makes 36 rotations. How many more rotations will it make before coming to rest (Assume uniform angular retardation)

(a)      He and O2 (b) O2 and He (c)   He and Ar (d) O2  and N2 Answer-b (141)
(a)     P3 > P1 , W > 0            (b)  P3 < P1 , W...
Q. In a March Past, seven persons are standing in a row. Q is standing left to R but right...
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