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Attwood's machine A uniform circular pulley of mass 2m can rotate freely about its axis of symmetry which is fixed in a horizontal position. Two masses m, 3m are connected by a light inextensible string which passes over the pulley without slipping. The whole system undergoes planar motion with the masses moving vertically.
Take the rotation angle of the pulley as generalised coordinate and obtain Lagrange's equation for the motion. Deduce the upward acceleration of the mass m.
Find the unit tangent vector, the unit normal vector and the curvature of the circle x = a cos θ, y = a sin θ, z = 0 at the point with parameter θ.
Water is the working fluid in an ideal Rankine cycle. Superheated vapor enters the turbine at 10 MPa, 4808C, and the condenser pressure is 6 kPa. Determine for the cycle (a) the rate of heat transfer to the working fluid passing through the stea..
an air standard diesel cycle has a compression ratio of 17 the pressure at the beginning of the compression stroke is
Explain how the f-chart (Figure 7.32) can be used graphically to determine the solar load fraction for a range of collector sizes once the solar and loss parameters have been evaluated for only one system size. Hint: Consider a straight line passi..
a solution of ethanol is pumped to a vessel 25 m above a reference level through a 25 mm inside diameter steel pipe at
what are the actual and design parameter of two stroke petrol engine?
Air is compressed steadily in a compressor from 100kPa and 300 K to 1 Mpa and 500 K. The compressor is not well insulated and a heat loss of 40 KJ/kg occurs during the process. Assuming the changes in kinetic and potential energies are negligible, de..
a flat plate separates two supersonic air flows. the flow along the upper surface has a mach number of 1.4 and a
a 1m3 rigid tank initially contains 5kg of steam at 150degc. a relief valve on top of the tank is opened to allow steam
steam at 5 mpa and 600oc enters an adiabatic turbine and expands to 50kpa at a mass flow rate of 10000kghour. the
How many degrees of freedom does the system have? Select a set of scalar coordinates to describe the degrees of freedom.
the rigid tank in the figure below has a volume of 60 l and initially contains a two-phase liquid vapor mixture of h20
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