How of fluids (branching) 1.4 ms flowrate from a tank is to be delivered to another tank. using parallel flow, d, -0.6m and de = 0.4 m. use foloke] a) what is the velocity at di? b) what is the velocity at du? c) what is the diameter if one pipe is used?

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?