An ideal transformer has a primary with 30 turns and secondary with 12 turns. The load resistor is 61 Ω and the source voltage is 88 Vrms . 88 Vrms RS 30 turns 12 turns 61 Ω If a voltmeter across the load measures 12.3 Vrms , what is the source resistance RS? Answer in units of Ω.

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.