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A unifrom circular disk which rolls with a velocity v without slipping encounters an abrupt change in the direction of its motions as it rolls onto the incline, theta. Determine the new velocity v' of the center of the disk as it starts up the incline, and find the fraction n of the initial energy which is lost becuase of the impact with the incline of theta=10 degrees.
an elastic exercise band is grasped and then is stretched. knowing that the tension in portion de of the band is 70
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..
an experimental fireworks shell is launched vertically from point a with an initial velocity of magnitude v0 80 ftsec.
the compression stages in the axial compressor of the industrial gas turbine are close coupled making intercooling very
your company wants to launch a new product. rampd including prototypes and manufacturing process development will take
Determine the force in member BC. After the truss is sectioned use a single equation of equilibrium for the calculation of each force. State if these member is in tension or compression. Take F1 = 2 kN , F2 = F3 = 3.8kN , F4 = 5 kN, F5 = 3 kN.
two 150lb engineering students a and b intend to jump off the bridge from rest using an elastic cord bungee cord having
calculate the maximum permissible crack size in acenter cracked panel subjected to a unifrom stress of 20 ksi. the toughness is 50 ksi"in, the yield stress is 60 ksi, w=12 inches
Find the compression ratio, cutoff ratio, the thermal efficiency, the mean effective pressure, and the P -v and T-s diagrams clearly showing all corners.
compute the torsional shear stress in a hallow shaft with an outside diameter of 40 mm and an inside diameter of 30 mm
water vapor at 6 mpa 600degc enters a turbine operating at steady state and expands to 10 kpa. the mass flow rate is 2
a beam consists of three planks connected as shown by 3/8 in diameter bolts spaced every 12in.along the longitudinal axis of the beam.knowing that the beam is subjected to a 2500lb vertical shear, determine the average shearing stress in the bolts..
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