Continuous horizontal flow of water
A fire hose 3.51 cm in diameter is capable of spraying water at a velocity of 24.7 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose to keep it stationary?
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Water vapor enters a compressor at 50 kPa and 150 C, and leaves at 400 kPa with the same specific entropy as at the inlet. What is the temperature of the water at the compressor exit.
Using dimensional analysis, nondimensionalize the period, T, and express its dependence on the other non-dimensional terms.
What is the initial thrust exerted on your spacecraft by the retro-rocket? What is the thrust's direction (positive if in the direction of the velocity of the spacecraft, or negative if in the opposite direction to the velocity of the spacecraft.)
A fine copper wire(0.07-cm diameter) is initially heated to 175C. The wire is suddenly exposed to an environment at 40C with a heat-transfer coefficient of 60W/(m^2*C).
The system is released from rest with the angle theta = 90 degrees. Determine theta dot when theta reaches 60 degrees.
The performance of a device is defined as the ratio of the desired output to the required input, and this definition can be extended to nontechnical fields.
A small leak develops in her propulsion system and 7.79 g of gas are ejected each second into space with a speed of 797 m/s. She notices the leak 5.91 s after it starts. How much will the gas leak have caused her to move from her original location
A four foot diameter reel of wire pays out 250 feet of conductor wire in two minutes. What is the average angular velocity of the reel in rpm. Provide step by step explanations.
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