VedClass-Data Entry

$A$ particle is moving in a circle with uniform speed $v$. In moving from a point to another diametrically opposite point:

Find the derivative of the function: $(x+\cos x)(x-\tan x)$

In compound $X$,all the bond angles are exactly ${109^o}28'$,$X$ is

Three rods of equal lengths are joined to form an equilateral triangle $ABC$. $D$ is the mid-point of $AB$. The coefficient of linear expansion is $\alpha_1$ for the material of rod $AB$ and $\alpha_2$ for the material of rods $AC$ and $BC$. If the distance $DC$ remains constant for small changes in temperature,then

Pure hydrogen sulphide is stored in a tank of $100 \ L$ capacity at $20 \ ^oC$ and $2 \ atm$ pressure. The mass of the gas will be ................. $g$.