In an experiment to determine the density of sand using a density bottle, the following measurements were recorded. Mass of empty bottle- 43.2g. mass of density bottle full of water-66.4g. mass of density bottle with some sand-67.5g and mass of density bottle with the sand filled up with water-82.3g. Find the volume of density bottle, mass of water that filled the space above the sand ,the volume of the sand snd the density of the sand.​

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.