Calculate the wavelength$($in nm$)$ for an electron with mass m $=9\mathrm{.}11\backslash$times $1031$

kg travelling at a velocity of $1\mathrm{.}00\backslash$times $10^7$ m$$s$1$

Planck$$s constant h $=6\mathrm{.}626\backslash$times $10^-34$ J$$s