Calculate the ratio of the energy generation rate for the pp-chain to the energy generation rate for the cno cycle given conditions characteristic of the center of the present-day (evolved) sun, namely t = 1.5696·10 7 k, rho = 1.527·10 5 kg/m 3 , x = 0.3397 and x cno = 0.0141. assume that the pp-chain screening factor (f pp ) and branching factor (ψ pp ) are both unity. explicitly state which fusion reaction dominates. for 5 points extra credit, calculate ε pp and ε cno using both the (more)

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.