Ahydraulic jump is situated in a 4-m wide rectangular channel. the discharge in the channel is 7.5 m3/sec, and the depth upstream of the jump is 0.20 m. determine the depth downstream of the jump, the upstream and downstream froude numbers, and the rate of energy dissipated by the jump.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?