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Calculating the Reynolds number.
find out Reynolds number if water at 15°C is flowing through a 3cm diameter pipe with a velocity of 50 cm-1. Is flow turbulent or laminar?
(At 15°C water has density of 999.1 kgm-3, and viscosity 1.14 x 10-3 Nsm-2)
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Consider a mathematical surface having the shape of a cube of edge 5cm.You do not know the electric charge or the electric field inside the cube , but you know the electric field at the surface; at the top of the cube th ...
A child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east. The child is 0.6 km from the shore and 2.5 km upstream from the dock. A rescue boat with speed 24.8 km/hr ( ...
A plane polarized electrodynamics wave travelling in a dielectric medium of refractive index 'n' is reflected at normal incidence from the surface of a conductor. Find the phase change undergone by its electric vector if ...
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