Data Entry - Physics

Ammonia can be dried by

$A$ point moves with uniform acceleration and $V_1, V_2$ and $V_3$ denote the average velocities in the three successive intervals of time $t_1, t_2$ and $t_3$. Which of the following relations is correct?

If $\theta$ is the angle between the lines $x^2+2 h x y+b y^2=0$,then the angle between $x^2+2 x y \sec \theta+y^2=0$ is

Ionisation of which of the following will be maximum in water?

Male gametes are flagellated in