Let $A$ and $B$ be independent events with $P(A)=0.3$ and $P(B)=0.4$. Find $P(A | B)$.

The image of the point $(4, -13)$ with respect to the line $5x + y + 6 = 0$ is

Data Entry - Physics

The vector diagram of current and voltage for a circuit is as shown. The components of the circuit will be

Two cylinders $A$ and $B$ fitted with pistons contain equal amounts of an ideal diatomic gas at $300\,K$. The piston of $A$ is free to move,while that of $B$ is held fixed. The same amount of heat is given to the gas in each cylinder. If the rise in temperature of the gas in $A$ is $30\,K$,then the rise in temperature of the gas in $B$ is .... $K$.

The part of the nephron involved in the active reabsorption of sodium is