A cube with $30-$cm$-$long sides is sitting on the bottom of an aquarium in which the water is one meter deep. $($Round your answers to the nearest whole number. Use $9\mathrm{.}8$ m$/$s$^2$ for the acceleration due to gravity. Recall that the weight density of water is $1000$ kg$/$m$^3.)($a$)$ Estimate the hydrostatic force on the top of the cube. N $($b$)$ Estimate the hydrostatic force on one of the sides of the cube. N