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The-nucleus-Fe-57-emits-a-ray-of-energy-14-4-keV-If-the-mass-of-the-nucleus-is-56-935-u-calculate-the-recoil-energy-of-nucleus-

Question Number 22813 by Tinkutara last updated on 22/Oct/17 $$\mathrm{The}\:\mathrm{nucleus}\:\mathrm{Fe}^{\mathrm{57}} \:\mathrm{emits}\:\mathrm{a}\:\gamma-\mathrm{ray}\:\mathrm{of}\:\mathrm{energy} \\ $$$$\mathrm{14}.\mathrm{4}\:\mathrm{keV}.\:\mathrm{If}\:\mathrm{the}\:\mathrm{mass}\:\mathrm{of}\:\mathrm{the}\:\mathrm{nucleus}\:\mathrm{is} \\ $$$$\mathrm{56}.\mathrm{935}\:\mathrm{u},\:\mathrm{calculate}\:\mathrm{the}\:\mathrm{recoil}\:\mathrm{energy}\:\mathrm{of} \\ $$$$\mathrm{nucleus}. \\ $$ Answered by ajfour last updated on…

tan-x-cot-x-dx-

Question Number 88339 by Rio Michael last updated on 10/Apr/20 $$\:\int\left(\:\sqrt{\mathrm{tan}\:{x}\:}\:+\:\sqrt{\mathrm{cot}\:{x}}\:\right){dx}\:=\:? \\ $$ Commented by jagoll last updated on 10/Apr/20 $$\sqrt{\mathrm{tan}\:\mathrm{x}}\:+\:\frac{\mathrm{1}}{\:\sqrt{\mathrm{tan}\:\mathrm{x}}}\:=\:\frac{\mathrm{tan}\:\mathrm{x}+\mathrm{1}}{\:\sqrt{\mathrm{tan}\:\mathrm{x}}} \\ $$$$\sqrt{\mathrm{tan}\:\mathrm{x}}\:=\:\mathrm{t}\:,\:\mathrm{tan}\:\mathrm{x}\:=\:\mathrm{t}^{\mathrm{2}} \\ $$$$\mathrm{2sec}\:^{\mathrm{2}}…

He-in-ground-state-is-hit-by-photon-thus-exciting-electron-to-second-excited-state-The-energy-absorbed-in-this-process-is-approx-1-2-18-10-14-J-2-7-75-10-18-J-3-4-5-10-18-

Question Number 22797 by Tinkutara last updated on 22/Oct/17 $$\mathrm{He}^{+} \:\mathrm{in}\:\mathrm{ground}\:\mathrm{state}\:\mathrm{is}\:\mathrm{hit}\:\mathrm{by}\:\mathrm{photon} \\ $$$$\mathrm{thus}\:\mathrm{exciting}\:\mathrm{electron}\:\mathrm{to}\:\mathrm{second}\:\mathrm{excited} \\ $$$$\mathrm{state}.\:\mathrm{The}\:\mathrm{energy}\:\mathrm{absorbed}\:\mathrm{in}\:\mathrm{this} \\ $$$$\mathrm{process}\:\mathrm{is}\:\left(\mathrm{approx}\right) \\ $$$$\left(\mathrm{1}\right)\:\mathrm{2}.\mathrm{18}\:×\:\mathrm{10}^{−\mathrm{14}} \:\mathrm{J} \\ $$$$\left(\mathrm{2}\right)\:\mathrm{7}.\mathrm{75}\:×\:\mathrm{10}^{−\mathrm{18}} \:\mathrm{J} \\ $$$$\left(\mathrm{3}\right)\:\mathrm{4}.\mathrm{5}\:×\:\mathrm{10}^{−\mathrm{18}}…

Successive-ionisation-energies-of-element-is-738-1450-10540-13630-kJ-mole-respectively-The-element-is-1-Na-2-Mg-3-Al-4-K-

Question Number 22782 by Tinkutara last updated on 22/Oct/17 $$\mathrm{Successive}\:\mathrm{ionisation}\:\mathrm{energies}\:\mathrm{of} \\ $$$$\mathrm{element}\:\mathrm{is}\:\mathrm{738},\:\mathrm{1450},\:\mathrm{10540},\:\mathrm{13630} \\ $$$$\mathrm{kJ}/\mathrm{mole}\:\mathrm{respectively}.\:\mathrm{The}\:\mathrm{element}\:\mathrm{is} \\ $$$$\left(\mathrm{1}\right)\:\mathrm{Na} \\ $$$$\left(\mathrm{2}\right)\:\mathrm{Mg} \\ $$$$\left(\mathrm{3}\right)\:\mathrm{Al} \\ $$$$\left(\mathrm{4}\right)\:\mathrm{K} \\ $$ Commented…

How-can-i-copy-and-paste-from-this-keyboard-to-other-apps-in-my-mobile-i-can-copy-but-can-not-getting-paste-in-other-apps-what-to-do-

Question Number 22744 by uttam1024 last updated on 22/Oct/17 $$\mathrm{How}\:\mathrm{can}\:\mathrm{i}\:\mathrm{copy}\:\mathrm{and}\:\mathrm{paste}\:\mathrm{from}\:\mathrm{this}\: \\ $$$$\mathrm{keyboard}\:\mathrm{to}\:\mathrm{other}\:\mathrm{apps}\:\mathrm{in}\:\mathrm{my}\:\mathrm{mobile}?\:\mathrm{i}\:\mathrm{can}\:\mathrm{copy}\:\mathrm{but}\: \\ $$$$\mathrm{can}\:\mathrm{not}\:\mathrm{getting}\:\mathrm{paste}\:\mathrm{in}\:\mathrm{other}\:\mathrm{apps}.\: \\ $$$$\mathrm{what}\:\mathrm{to}\:\mathrm{do}? \\ $$$$ \\ $$ Commented by $@ty@m last updated…

The-Enthalpy-of-neutralization-of-acetic-acid-and-sodium-hydroxide-is-55-4-kJ-What-is-the-enthalpy-of-ionisation-of-acetic-acid-

Question Number 22743 by Tinkutara last updated on 22/Oct/17 $$\mathrm{The}\:\mathrm{Enthalpy}\:\mathrm{of}\:\mathrm{neutralization}\:\mathrm{of} \\ $$$$\mathrm{acetic}\:\mathrm{acid}\:\mathrm{and}\:\mathrm{sodium}\:\mathrm{hydroxide}\:\mathrm{is} \\ $$$$−\mathrm{55}.\mathrm{4}\:\mathrm{kJ}.\:\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{enthalpy}\:\mathrm{of} \\ $$$$\mathrm{ionisation}\:\mathrm{of}\:\mathrm{acetic}\:\mathrm{acid}? \\ $$ Answered by Sahib singh last updated on…

Evaluate-27-x-3-6-1-3-dx-

Question Number 88236 by Rio Michael last updated on 09/Apr/20 $$\:\mathrm{Evaluate}\:\:\int\sqrt[{\mathrm{3}}]{\frac{\mathrm{27}}{{x}^{\mathrm{3}} −\mathrm{6}}}\:{dx}\: \\ $$ Answered by MJS last updated on 09/Apr/20 $$\int\sqrt[{\mathrm{3}}]{\frac{\mathrm{27}}{{x}^{\mathrm{3}} −\mathrm{6}}}{dx}=\mathrm{3}\int\frac{{dx}}{\:\sqrt[{\mathrm{3}}]{{x}^{\mathrm{3}} −\mathrm{6}}}= \\…

A-force-F-2xj-newton-acts-in-a-region-where-a-particle-moves-anticlockwise-in-a-square-loop-of-2-m-in-x-y-plane-Calculate-the-total-amount-of-work-done-Is-this-force-a-conservative-force-or-

Question Number 22696 by Tinkutara last updated on 22/Oct/17 $$\mathrm{A}\:\mathrm{force}\:\overset{\rightarrow} {{F}}\:=\:\mathrm{2}{x}\overset{\wedge} {{j}}\:\mathrm{newton}\:\mathrm{acts}\:\mathrm{in}\:\mathrm{a}\:\mathrm{region} \\ $$$$\mathrm{where}\:\mathrm{a}\:\mathrm{particle}\:\mathrm{moves}\:\mathrm{anticlockwise} \\ $$$$\mathrm{in}\:\mathrm{a}\:\mathrm{square}\:\mathrm{loop}\:\mathrm{of}\:\mathrm{2}\:\mathrm{m}\:\mathrm{in}\:{x}-{y}\:\mathrm{plane}. \\ $$$$\mathrm{Calculate}\:\mathrm{the}\:\mathrm{total}\:\mathrm{amount}\:\mathrm{of}\:\mathrm{work} \\ $$$$\mathrm{done}.\:\mathrm{Is}\:\mathrm{this}\:\mathrm{force}\:\mathrm{a}\:\mathrm{conservative}\:\mathrm{force} \\ $$$$\mathrm{or}\:\mathrm{a}\:\mathrm{non}-\mathrm{conservative}\:\mathrm{force}? \\ $$ Commented…