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Suppose a particle is subjected to a time dependent force of the form F = f (t) grad W(r).
Show that this force can be represented by the time dependent potential U = - f (t)W(r). What is the value of U when F = f (t)i ?
the top cycle of a combined cycle power plant has a pressure ratio of 12. air enters the compressor at 300 k at a rate
the rigid tank illustrated in the figure has a volume of 0.06 m3 and initially contains a two-phase liquid-vapor
consider the electrical conductor assembly in the form of four 4 parallel plates that have one edge mounted to a
Calculate the compression C in the strut and the horizontal components of the forces supported by hinges A and B when a horizontal force P = 50 lb is applied normal to the plane of the door as shown.
Comment on storage needs in both locations.Low-temperature organic and steam efficiencies were computed with the following assumptions: expander efficiency, 80%; pump efficiency, 50%; mechanical efficiency, 95%; condensing temperature, 95°F; regen..
Calculate the load that a fibroblast cell applies to buckle a simple column collagen tissue engineering scaffold, given the column has a length of 100 um, is circular in cross section, with a diameter of 2 um, and has a young´s modulus of 5 Mpas. You..
based on observations the speed of a jogger can be approximated problems 617 by the relation v 5 7.51 2 0.04x0.3 where
Quarterly demand for flowers at a wholesaler are as shown. Forecast quarterly demand for year 5 using: 1. simple exponential smoothing with α=0.1 2. using Holt's model with α=0.1 and β=0.1
What are the two ways of balancing capacity available and load? Which is preferred? Why?
Indicate how PWM is useful in the control of dc motors. List the advantages and disadvantages of PWM.
Three SAE Class 4.8 bolts (Sp = 310 MPa) are used to attach a rigid beam to a rigid support structure. Determine the minimum standard size bolt required from the Table provided
question 1 it is observed that snow lies stably on roofs with a slope of less than 24deg but that it slides off roofs
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