7. A submarine is 109.36 yards. The shape of its hull is roughly cylindrical with a diameter of 15m. When it is submerged, it cruises at a speed of about 40 knots or approximately 20m/s. Compute Reynold's number, if the viscosity is 0.01 Poise.
7. A submarine is 109.36 yards. The shape of its hull is roughly cylindrical with a diameter of 15m. When it is submerged, it cruises at a speed of about 40 knots or approximately 20m/s. Compute Reynold's number, if the viscosity is 0.01 Poise.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Answer number #7 and make a detailed solution such as the unit cancellation, and its conversions so that I can understand the process because I am new in engineering.
Thankyou so much!
Transcribed Image Text:1. A block of wood that weighs 16lb: and of specific gravity with a relative density of
1213.6 Ib/yard³ is tied by a string to the bottom of a tank of water in order to have the
block totally immersed. Determine the tension in the string in pound-force.
2. A 1124gpm of water is flowing in a round pipe such that the flow remains laminar.
What is the diameter of the pipe in inches necessary to ensure laminar flow? Use
kinematic viscosity of 4398 stokes.
3. A barrel contains a 15 cm layer of oil of density 5.88 kN/m² floating on water that is 30
cm deep. What is the gauge pressure in mmHg at the oil-water interface?
4. What is the specific gravity of a solid sphere that has a radius of 0.6 in and a mass of
1.34 ounces?
5. A certain gas weighs 3.19 x 103 slugs/ft® at a certain temperature and pressure. What
are the values of its density (N/m³), specific volume (m³/kg), and specific gravity relative
to air weighing 2.39 x 10³ slugs/ft?
6. The specific weight of glycerin is 1.26 lb/ft°. Compute its density (kN/m³) and specific
gravity. What is its specific weight in g/mL?
7. A submarine is 109.36 yards. The shape of its hull is roughly cylindrical with a diameter
of 15m. When it is submerged, it cruises at a speed of about 40 knots or approximately
20m/s. Compute Reynold's number, if the viscosity is 0.01 Poise.
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