Josh starts at a position of x=0 meters at the left side of the front of the classroom. over the course of the class he walks back and forth in front of the class 15 times, 6 meters to the right, and then 6 meters back to the left. what is the total distance (in meters) josh walks? (enter just the number, no units.)

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.