The mass per unit length of a uniform wire is $0.135 \mathrm{g} {\mathrm{cm}}^{-1}$. A transverse wave of the form $y=-0.21\sin \left(x+30t\right)$ is produced in it, where $x$ is in meter and $t$ is in second. Then, the expected value of tension in the wire is $x\times {10}^{-2} \mathrm{N}$. Value of $x$ is               (Round-off to the nearest integer)