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Air flows through a convergent-divergent nozzle from a large reservoir in which the pressure and temperature are maintained at 700 kPa and 60 C, respectively. The rate of air flow through the nozzle is 1 kg/s. On the exit plane of the nozzle the stagnation pressure is 550 kPa and the static pressure is 500 kPa. A shock wave occurs in the nozzle and the flow can be assumed to be isentropic everywhere except through the shock wave. Find the nozzle throat area, the Mach numbers before and after the shock, the nozzle areas at the point where the shock occurs and on the exit plane, and the air density on the exit plane of the nozzle.
Find the differential equation governing the motion of the diver while she is in contact with the board. Neglect any rotational inertia and what is the peak de?ection of the diving board?
determine the magitudes of the horizontal and vertical reactions of the chair on the man at the instant . At this instant he has a speed of 6 m/s, which is increasing at 0.5 m/s^2.
As shown, a 150 lb bungee jumper wants to jump from the top of a 630 ft high bridge and be able to just touch the water below. Given that the bungee cord has a spring constant of 108 lb/ft, what should the bungee cord's relaxed length, l, be for t..
suppose you are outside on a cold day with no gloves. assume your hands have an area of 0.01 m2. the temperature of
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what volume must be provided in a methane tank to hold 10kg of methane at 1500 kpa and 30 degrees celsius? if the
question 1 entropya in a coal fired thermal power station indicate where the exergy contained in the coal is destroyed.
the system is released from rest with the cable taut. neglect the small mass and friction of the pulley and calculate
the length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. when the
the pilot of flighter plane f is following 1.5 behind the pilot of bomber b. both planes are originally traveling at
convert the composition of the following alloy from atom percent to weight percent a 44.8 at of silver b 46.3 at of
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