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The drag on a 30-ft long, vertical, 1.25-ft diameter pole subjected to a 30 mph air wind is to be determined with a model study. It is expected that the drag is a function of the pole length and diameter, the fluid density and viscosity. Laboratory model tests were performed in a high-speed water tunnel using a model pole having a length of 2 ft and a diameter of 1 in. Some model drag data are shown in the figure. Based on these data, predict the drag on the full-sized pole.
A cubical block of wood weighing 200g has a lead piece fastened underneath. Find the mass of the lead piece which will just allow the block to float in water. Exact gravity of wood
What is packing polymorphism When polymorphism exists as a result of change in crystal packing, it is called packing polymorphism. Polymorphism can also result from the existen
The radius of an atom is of the order of: (1) 10 -10 cm (2) 10 -13 cm (3) 10 -15 cm (4) 10 -8 cm Ans: (4)10 -8 cm
how to arrange a magnetometer in tan a postion
i. Open System - Here the system boundary is like energy and matter can enter or leave the system freely. Infect the system boundary here is imaginary. ii.Closed System - Here t
working and construction of fabry perot interferometer
The mass of 1 mole of electrons is: (1) 9.1x 10 -28 g (2) 1.008mg (3) 0.55mg (4) 9.1x 10 -27 g Ans: (3)0.55mg
Q. Illustrate that soccer balls go faster in the air on a cold or hot day? Answer:- On a hot day the air molecules have additional kinetic energy they move around more fre
The amplified video signals are amplitude modulated using a suitable r.f. carrier wave in a transmitter called ‘AM' picture transmitter. Similarly, the amplified audio signals are
Casting : Fe-C alloys with more than 2% carbon are known as cast irons. On crossing the liquidus, proeutectic crystallizes first. On passing by the eutectic temperatures, the liqui
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