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The centrifuge shown in the figure rotates in a horizontal plane (the xy plane) on a smooth surface about the z axis (which is vertical) with an angular acce1eration (J.. Each of the two arms has weight w per unit length and supports weight W = 10wL at its end. Derive formulas for the maximum shear force and maximum bending moment in the arms, assuming b = L/9 and c = L/10.
0.7 kg of Refrigerant 134a undergoes a constant pressure process at 140 kPaabs from T=20 oC to saturated vaport. Determine the work transport of energy for the process.
an ogee spillway of a gravity dam is to be modeled using water. the spillway section is 40 feet high its crest length
Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an elliptically shaped surface crack of length 0.16 mm and that has a tip radius of curvature of 0.002 mm when a stress of 1..
The plate is submerged in a liquid is a vertical position with the parallel sides horizontal and the shorter parallel side at the top and exactly in the surface of the liquid. The static moment of the plate with respect to the surface of the liqui..
consider an ideal vapor-compression refrigeration cycle. the refrigerator employs refrigerant 134a as the working fluid
A beam of rectangular cross section supports an inclined load P having its line of action along a diagonal of the cross section (see figure). Show that the neutral axis lies along the other diagonal.
a 2mm straight stockpiece of steel has a 90dbend. the total length of the unbent piece was 64mm. from the end of the
What natural frequency must a hand drill have if its vibration must be limited to a minimum rms displacement of 10 μm and rms acceleration of 0.1 m/s2 ? What rms velocity will the drill have?
water flows through a venturi with piezometers attached to the upstream pipe and the minimum area section. the velocity
to test its performance an automobile is driven around a circular test track of diameter d. determine a the value of d
calculate the linear density of atoms along the 111 direction and the planar density of atoms in the 111 plane in bcc
A rectangular block of density p1 floats in a liquid of density p2. Determine the ratio r = h/c, where h is the submerged depth of block. Evaluate r for an oak block floating in fresh water and for steel floating in mercury.
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