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Saturn V rocket In first stage of the Saturn V rocket, the initial mass was 2.8×106 kg, of which 2.1×106 kg was fuel. The fuel was burned at a constant rate over 150 s and the exhaust speed was 2, 600 m s-1. Use the results of the last problem to find the speed and height of the Saturn V at first stage burnout.
[Take g to be constant at 9.8ms-2 and neglect air resistance.]
two tubes are available for a particular application 1 4.0 cm diameter circular tube and 2 4.0 cm square tube. air at 1
At the instant shown the tensions in the vertical ropes AB and DE are 300N and 200N, respectively. Knowing that the mass of the uniform bar BE is 5kg, determine, at this instant
water contained in a closed, rigid tank, initially saturated vapor at 200C, is cooled to 100C. determine the initial and final pressure, each in bar. locate the initial and final states on a sketches of the p-v and T-v digrams.
a cold-drawn aisi 1018 steel bar similar to the component shown in the diagram of table a- 15-1 is subjected to an
the automatic transmission in a car receives 25 kw shaft work and gives out 24 kw to the drive shaft. the balance is
two m3 of xenonxe are contained in a closed rigid tank at 70 degree c and 2 bar. the tank is heated to a pressure of 10
compressed natural gas is stored in a spherical tank 8 meters in diameter at ambient temperature 25 degc and at a
What is the mass of oxygen gas in a container with a volume of 25 ft3, at a pressure of 14.7 psia and a temperature of 75oF?
a water cannon for rock tunneling operates by using compressed gas for accelerating a 65-kg high-strength titanium
two boys push on the gate as shown. if the boy at b exerts a force of fb 30 lb determine the magnitude of the force fa
write a computer program or use an equation solver such as mathcad or tk solver to calculate and plot the s v a j
Assuming that the electricity cost is $0.10/kWh and does not change over time, estimate the simple payback time for the solar hot water heater. The temperature of the water in the main from which it is to be heated is 10°C.
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