Latest Posts

Two objects moving along the same straight line are leaving point A with an acceleration a, 2 a & velocity 2u, u respectively at time t =0. The distance moved by the object with respect to point A when one object overtakes the other is

Consider both will meet at point B\(\begin{array}{l}x=2ut+\frac{1}{2}at^{2}\end{array} \)\(\begin{array}{l}2ut+\frac{1}{2}at^{2}=ut+at^{2}\end{array} \)\(\begin{array}{l}ut=\frac{1}{2}at^{2}\end{array} \)\(\begin{array}{l}t=\frac{2u}{a}\end{array} \)\(\begin{array}{l}x=2u(\frac{2u}{a})+\frac{1}{2}a{\frac{2u}{a}}^{2}=\frac{6u^{2}}{a}\end{array} \)

Mg2+ is isoelectronic with

Mg<sup>2+</sup> is isoelectronic with? Cu<sup>2+</sup> Ca<sup>2+</sup> Na<sup>+</sup> Zn<sup>2+</sup> The correction option is iii.Na<sup>2+</sup> We know that isoelectronic species have the... View Article

Integration of Sin inverse X

Given: To integrate: ∫sin<sup>-1</sup>x dx Solution: Consider sin<sup>-1</sup>x as the first function and integrate them by parts ∫sin<sup>-1</sup>x.1dx sin<sup>-1</sup>∫1dx-∫(d/dx(sin<sup>-1</sup>x)∫1dx) xsin<sup>-1</sup>x-∫x/√1-x<sup>2</sup>... View Article