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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.
When a driver brakes an automobile, the friction between the brake drums and the brake shoes converts the car's kinetic energy to thermal energy. If a 1800 kg automobile traveling
The greatest and least magnitude of the resultant of two forces of constant magnitude are P & Q. Proof that when the forces act at an angle of 2 alpha, their resultant is of magnit
"The pressure of a needed mass of gas at constant volume differs directly as its Kelvin Temperature",
The idea that everything is made up of very small particles has been developed over many years supported by several experiments: (i) Brownian motion :
derive an expression for the total cross section for the scattering of light by a polorisable molecule in term of the incedent wave length.
Passive network:- It can be described as a network, which contains no source of e.m.f. in it.
Each object continues to be in its state of uniform motion or of rest in a straight line unless completed by some external force to perform otherwise. Newton's first law is real
A 35-kg child is riding on a swing that rises to a maximum height of 0.80 m. Neglecting friction, what is the child's gravitational potential energy at the top of the swing?
A Neutron Star is formed in the aftermath of a Supernova explosion. The star was originally rotating with a period of 20 days and had a mass of 2x10 30 kg and radius of 6x10 8 m.
Describe the formation of Newton''s rings.
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