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A body is projected vertically upwards with speed u and moves under uniform gravity in a medium that exerts a resistance force proportional to the square of its speed and in which the body's terminal speed is V.
Find the maximum height above the starting point attained by the body and the time taken to reach that height. Show also that the speed of the body when it returns to its starting point is uV/(V2 + u2)½.
Linseed oil is to be pumped at a flow rate of 12gpm over a distance of 18m. The allowable pressure drop is 15 psi. Centrifugally spun cast iron is to be used as a pipe material. Determine the appropriate line size.
a composite rod consists of two different materials a and b each of length 0.5 l. the thermal conductivity of material
Determine and plot as a function of () the tension T required to make the net moment about O zero. Use the two values d = 60 mm and d = 160 mm and comment on the relative design merits. The effects of the radius of the pulley at B are negligible.
A flat rectangular plate 8.50 X 11.00 in. in size is inserted into lake water at 60°F from a boat moving at 30 mph. What force is required to hold the plate steady relative to the boat with the flat face toward the water?
find the specific flow exergy in and out of the steam turbine in example 9.1 assuming an ambient at 293 k. use the
Calculate the heat transfer per kilogram of air between sections (1) and (2), and the stagnation pressure at section (2).
Calculate the minimum natural frequency of a hydraulic cylinder (L = 25 cm) and (D = 4 cm) connected to a 45 kg load when the hydraulic fluid is an oil with B= 1.7 GPa
The power output of a non-ideal gas turbine cycle having a compressor thermal efficiency of 80% and a turbine thermal efficiency of 90 %., open-cycle gas turbine cycle is 75 MW and its pressure ratio is 16. Air enters the compressor at 520 R and ente..
a 3000lb car is traveling at 60mih up an inclined surface of 5deg when the brakes are applied creating a constant
An electric immersion heater, 10 mm in diameter and 300 mm long, is rated at 550 W. If the heater is horizon- tally positioned in a large tank of water at 20°C, estimate its surface temperature. Estimate the surface temperature if the heater is ac..
given a thin-walled square tube with median edge dimensions a x a wall thickness t and a longitudinal slot of
a solar dish-stirling engine system operates between the temperature of 500c and 30c. compute the ideal stirling
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