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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.
If the distance between two objects, each of mass 'M', is tripled, the force of attraction between the two objects is: a) 1/2 the original force b) 1/3 the original fo
A step-up transformer works on 220V and gives 2A to an external resistor. The turn ratio between the secondary and primary coils is 2 : 25. Assuming 100% efficiency, Determine the
Find an expression for the angular frequency A small object oscillates back and forth at the bottom of frictionless hemispherical bow. The radius of the bowl is Rwanda the angle
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Centrifugal force with a liquid Get a small goldfish bowl or glass jar. Fasten a wire securely about the neck. To this wire attach a bale. Join the cord from the drill chuck to
a particle of xkg pended by two light inextensible strings of AB and BC of lengths 8cm and 6cm respectively with the mass x attached to B. The end A and C are fixed at the same and
According to Rutherford's experiment when a sample of radioactive substance is place in a lead box and permit the emission of radiation by a small hole only. When the radiation ent
what is plane diffraction grating?
Dirive an expretion for low of succecive disintigretion
Explain the term- Zener Breakdown Under a very high reverse voltage, depletion region expands and potential barrier increases resulting in a very high electric field (3X10 7
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