Others – Page 251 – Tinku Tara

Prove-that-for-all-complex-such-as-z-lt-1-n-1-z-n-z-n-1-2-n-1-nz-n-z-n-1-0-

Tinku Tara June 4, 2023 Others 0 Comments

Question Number 89937 by ~blr237~ last updated on 20/Apr/20 $P r o v e t h a t f o r a l l c o m p l e x s u c h a s ∣ z ∣< 1 =$ $\underset{n = 1}{\sum^{\infty}} \frac{z^{n}}{{(z^{n} - 1)}^{2}} + \underset{n = 1}{\sum^{\infty}} \frac{{n z}^{n}}{z^{n} - 1} = 0$ Commented by…

Two-particle-move-along-an-x-axis-The-position-of-particle-1-is-given-by-x-6-00t-2-3-00t-2-00-m-s-the-acceleration-of-particle-2-is-given-by-a-8-00t-m-s-2-and-at-t-0-its-velocity-is-20-m

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Question Number 24387 by chernoaguero@gmail.com last updated on 17/Nov/17 $Two particle move along an x - axis .$ $The position of particle 1 is given;$ $by x = 6.00 t^{2} + 3.00 t + 2.00 (\frac{m}{s})$ $the acceleration of particle 2 is given$ $by a = - 8.00 t (\frac{m}{s^{2}}) and, at t = 0, its$ $velocity is 20 (\frac{m}{s}) . when the velocities$ $$\boldsymbol{\mathrm{of}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{particles}}\:\boldsymbol{\mathrm{match}}, \…

Two-blocks-are-moving-together-under-the-action-of-a-constant-horizontal-external-force-F-If-the-smaller-block-is-at-rest-with-respect-to-the-bigger-block-due-to-the-friction-between-them-then-the-n

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Question Number 24371 by Tinkutara last updated on 16/Nov/17 $Two blocks are moving together under$ $the action of a constant horizontal$ $external force F . If the smaller block is$ $at rest with respect to the bigger block$ $due to the friction between them, then$ $the normal reaction between the bigger$ $block and floor is$ Commented…

Question-24369

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Question Number 24369 by ajfour last updated on 16/Nov/17 Commented by ajfour last updated on 16/Nov/17 $I f a u n i f o r m r o d o f m a s s m,$ $l e n g t h L, a n d h o o k e d a t e n d A$ $t o a s t r i n g o f l e n g t h l b e$ $r e l e a s e d i n h o r i z o n t a l p o s i t i o n,$ $${then}\:{a}\:{little}\:{time}\:{later}\:{find}\:\boldsymbol{\phi}…

x-2-x-5xy-6y-2-2y-2-0-

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Question Number 155400 by TVTA last updated on 30/Sep/21 $x^{2} + x + 5 x y + 6 y^{2} + 2 y - 2 = 0$ Commented by MJS_new last updated on 30/Sep/21 $hyperbola with center [\begin{matrix} 2 \\ - 1 \end{matrix}] and axes$ $${a}=\mathrm{2}\sqrt{−\mathrm{7}+\mathrm{5}\sqrt{\mathrm{2}}} \…

In-the-figure-shown-below-all-surfaces-are-smooth-strings-and-pulley-are-ideal-If-the-wedge-is-moving-with-acceleration-a-towards-the-right-then-the-acceleration-of-the-block-with-respect-to-the-w

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Question Number 24301 by Tinkutara last updated on 15/Nov/17 $In the figure shown below, all surfaces$ $are smooth, strings and pulley are ideal .$ $If the wedge is moving with acceleration$ $a towards the right, then the acceleration$ $of the block with respect to the wedge$ $at that instant is$ Commented by Tinkutara…

Find-the-centre-of-mass-of-a-uniform-a-half-disc-b-quarter-disc-

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Question Number 24293 by Tinkutara last updated on 15/Nov/17 $Find the centre of mass of a uniform$ $(a) half - disc, (b) quarter - disc .$ Commented by ajfour last updated on 15/Nov/17 Commented by ajfour last…

In-a-fuel-cell-methanol-is-used-as-a-fuel-and-O-2-is-used-as-oxidizer-The-standard-enthalpy-of-combustion-of-methanol-is-726-kJ-mol-1-The-standard-free-energies-of-formation-of-CH-3-OH-l-CO

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Question Number 24287 by Tinkutara last updated on 15/Nov/17 $In a fuel cell, methanol is used as a fuel$ $and O_{2} is used as oxidizer . The standard$ $enthalpy of combustion of methanol is$ $- 726 kJ {mol}^{- 1} . The standard free$ $energies of formation of {CH}_{3} OH (l),$ $$\mathrm{CO}_{\mathrm{2}} \left(\mathrm{g}\right)\:\mathrm{and}\:\mathrm{H}_{\mathrm{2}} \mathrm{O}\left(\mathrm{l}\right)\:\mathrm{are}\:−\mathrm{166}.\mathrm{3},\:−\mathrm{394}.\mathrm{4}…

The-reversible-expansion-of-an-ideal-gas-under-adiabatic-and-isothermal-conditions-is-shown-in-the-figure-Which-of-the-following-statement-s-is-are-correct-1-T-1-T-2-2-T-3-gt-T-1-3-

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Question Number 24263 by Tinkutara last updated on 14/Nov/17 $The reversible expansion of an ideal$ $gas under adiabatic and isothermal$ $conditions is shown in the figure . Which$ $of the following statement (s) is (are)$ $correct ?$ $(1) T_{1} = T_{2}$ $$\left(\mathrm{2}\right)\:\mathrm{T}_{\mathrm{3}} \:>\:\mathrm{T}_{\mathrm{1}} \…

Which-of-the-following-reaction-is-are-exothermic-reaction-s-1-CaCO-3-CaO-CO-2-2-Fe-S-FeS-3-NaOH-HCl-NaCl-H-2-O-4-CH-4-O-2-CO-2-2H-2-O-

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Question Number 24259 by Tinkutara last updated on 14/Nov/17 $Which of the following reaction is / are$ $exothermic reaction / s ?$ $(1) {CaCO}_{3} \to CaO + {CO}_{2}$ $(2) Fe + S \to FeS$ $(3) NaOH + HCl \to NaCl + H_{2} O$ $$\left(\mathrm{4}\right)\:\mathrm{CH}_{\mathrm{4}} \:+\:\mathrm{O}_{\mathrm{2}} \:\rightarrow\:\mathrm{CO}_{\mathrm{2}} \:+\:\mathrm{2H}_{\mathrm{2}}…

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