P$1\mathrm{.}79$ From Table A$\mathrm{.}3,$ the density of glycerin at standard conditions

is about $1260k\frac{g}{m^3}.$ At a very high pressure of $8000l\frac{b}{i}{n}^2,$ its

density increases to approximately $1275k\frac{g}{m^3}.$ Use this data

to estimate the speed of sound of glycerin, in ft$/$s$.$