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Physics
A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in time t is proportional to: (a) t ^1/2 (b) t ^3/4 (c) t ^3/2 (d) t ²
Chemistry
For the electrochemical cell, M\| M⁺ \|\| X^-\| X, E⁰ M⁺/M = 0.44V and E⁰ (X/X^-) = 0.33V. From this data one can deduce that is the spontaneous reaction is the spontaneous reaction (c) E_cell = 0.77V (d) E_cell = –0.77V
Mathematics
The value of the expression , where is an imaginary cube root of unity, is ……………………….

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