Compute the drag when the boat sails
The centerboard of a sailboat is 2.5m long and has a chord of 1m. Approximate the centerboard as a flat plate in water at 20C to compute the drag when the boat sails at 15 knots.
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A statewide real estate agency, Farm Associates, specializes in selling farm property in the state of Nebraska. Its records indicate that the mean selling time of farm property is 90 days.
The thin-walled pipe has an inner diameter of 0.5 cm and a thickness of 0.025 cm. If it is subjected to an internal pressure of 5 MPa and the axial tension (200 N) and torsional loadings (2 N.m) shown, determine the principal stresses at a point o
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In a double-slit interference experiment, the wavelength is 467 nm, the slit separation is 0.110 mm, and the screen is 39.9 cm away from the slits. What is the linear distance between adjacent maxima on the screen?
A ship's hull is 150m long as has a wetted area of 5000 m^2. When it is encrusted with barnacles, it requires 7000 hp to overcome friction drag and move at 15 knots in seawater at 20C. What is the average roughness due to the barnacles?
The compressed liquid water enters the desuperheater at 5MPa, 40 degrees centigrade. Water exits the desuperheater as 4.5Mpa saturated vapor. Find the required mass flow rate of the compressed liquid.
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