The heat energy released by water of mass $2 \,kg$ when it is cooled by $10^{\circ} C$ is (Specific heat capacity of water $= 4200 \,J \,kg^{-1} \,K^{-1}$) (in $\,J$)

If the specific heat of a substance is infinite,it means

Why is the wind coming from the sea cool at the shores?

On what factors does the required amount of heat depend to heat a given substance?

$A$ current-carrying wire heats a metal rod. The wire provides a constant power $(P)$ to the rod. The metal rod is enclosed in an insulated container. It is observed that the temperature $(T)$ in the metal rod changes with time $(t)$ as:
$T(t) = T_0(1 + \beta t^{1/4})$
where $\beta$ is a constant with appropriate dimensions,while $T_0$ is a constant with the dimension of temperature. The heat capacity of the metal is:

Whose specific heat is high? Sand or water?