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A child A is swinging from a swing that is attached to a trolley that is free to move along a fixed rail. Letting L = 3.4 m, if at a given instant aB = 3.3 m/s2 . theta = 23 degrees, theta dot = 0.45 rad/s and theta double dot = -0.2 rad/s2. Determine the magnitude of the acceleration of the child relative to the rail at that instant. Give answer to four significant figures.
How many kilograms each of pearlite and the proeutectoid phase form? Schematically sketch and label the resulting microstructure.
Plot the total mass in the tank, in kg, and the amount of heat transfer, in kJ, versus the final quality x ranging from 0.2 to 1.0
A circular shaft is subjected to a torque Ta and a bending moment Ma. Assuming that the diameter of the shaft is d, determine the expressions for the principal stresses and maximum shear stress in terms of Ma, Ta and d.
Two tow trucks lift a 100 lb motorcycle out of a ravine following an accident. If the motorcycle is in equilibrium in the position shown, what are the tensions in cables AB and AC?
an ice chest is constructed of 0.4 mm thick plain-carbon steel plate a 1.9 cm thick layer of styrofoam k0.033 wm c and
hypothesis testing. think of a problemissue in your job or in life that can be addressed using a hypothesis test.
an air standard brayton cycle has inlet conditions of 540 r and 14 .7 psia a compressor efficiencyof 85.86 and a
two kilogram of water initially at 200 degc and 0.4 mpa undergoes an isothermal internally reversible compression
a steam power plant operating in a rakine cycle has saturated vapor at 600 lbfin2 leaving the boiler. the turbine
a helical compression spring is made of no. 18 .0147 in wire having a torsional yield strength of 108 kpsi. it has an
A cooking pan whose inner diameter is 20 cm is filled with water and covered with a 4-kg lid. If the local atmospheric pressure is 101 kPa, determine the temperature at which the water starts boiling when it is heated.
determine the coordinates xc and yc of the point where the resultant load must act in order to produce uniform normal stress in the column.
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