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A windmill is operating in a 10 m/s wind that has a density of 1.2 kg/m3. The diameter of the windmill is 4 m. The constant-pressure (atmospheric) stream tube has a diameter of 3 m upstream of the windmill and 4.5 m downstream. Assume that the velocity distributions are uniform and the air is incompressible. Determine the thrust force on the windmill.
what is the tension in the string when the block is lifted at a steady speed when the weight weighs 4.5N and the distance is 90cm
a picture frame is hanging by two verticle strings the tention in the string are 3.8N and 4.4N find the weight of the picture frame
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(a) Convert the network to the left of terminals AB in Figure 13.60 to an equivalent Thévenin circuit by initially converting to a Norton equivalent network. (b) Determine the
A block of mass 2 kg is pulled up on a smooth incline making angle 30 degrees with horizontal . if block moves with an acceleration of 1 m/s2 , find a) Power delivered by the pull
explain the process of power generation and transmission?.
Consider the water heat distribution system shown below where: The fractions refer to the fraction of the stream ?owing, e.g. 20% of the stream leaving the 100,000 Btu/ hr heate
Explain the term 'resistivity' and write its S. I . unit. Derive the expression for the resistivity of a conductor in terms of number density of free electrons and relaxation time.
State the Working of UJT Make circuit arrangement as demonstrated in fig.(c), where UJT is represented by its equivalent circuit comprising resistances R B1
Role of Magnetic field in generating ultrasonic waves Magnetic field is applied parallel to the length of a ferromagnetic rod made of material as like iron or nickel, a small e
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