Seven seconds after a brilliant flash of lightning, thunder shakes the house. how far was the lightning strike from the house? seven seconds after a brilliant flash of lightning, thunder shakes the house. how far was the lightning strike from the house? much farther away than two kilometers much closer than one kilometer about two kilometers away about one kilometer away it is impossible to predict.

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.