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Calculate the Euler buckling load for a mild steel rod of length 5m and diameter 25mm when pinned at each end and axially loaded. If this rod is to be used again with an initially straight axis, determine the maximum permissible deflection that may be allowed during testing procedures. Young's Modulus = 210 kN/mm2 and Yield stress of the steel= 240 N/mm2.
A minimum contact time of 30 min is required to reduce the pathogen concentration from 100 pathogens/L to below 1 pathogen/L through a first- order decay process. You plan on treating water at a rate of 1,000 gal/min.
describe the measurements that would have to be taken and the equations that would have to be used to determine G23, V32, and E2 for a specially orthotropic transversely isotropic material from a single tensile test.
Provide the function prototype for the following function if it is to be declared as a friend function of class Planet. Include the class declaration and the proper access attribute, but you are not required to add any additional class data or fun..
A newly designed dam is to be modeled in the laboratory. The prime objective of the general model study is to determine the adequacy of the spillway design and to observe the water velocities, elevations, and pressures at critical points of the st..
What is the concentration (M) of Al3+ in lake water with pH = 4 assuming the equilibrium below with excess Al(OH)3 (s) The reaction is Al(OH)3 (s) --> Al3+ + 3OH-. pKsp = 32.9.
Use the Bernoulli equation to describe how this manometer can be used to measure the flow rate through the meter.
A structural steel beam is attached to a column with bolts. The downward force on the connection is 150 kips. What bolt sizes must be used if the allowable shear stress is 25.0 ksi
Water in a pip has a pressure of 22.1 lb/ft2. What is the pressure head?
A tracer study was conducted to assess groundwater velocity and showed that a slug of a conservative tracer took 34 days to travel the 10-m distance between two wells.
Effective stress is defined as the overburden soil pressure less the buoyancy effect of water. What is the effective stress 20 feet deep if the specific weight of the dry soil is 113 pcf and the water table is 11 feet deep
The dry weight of a core is 28.20 gm. When saturated with a brine having a density of 1.15 gm/cc, the weight increases to 31.50 gm. Calculate the apparent porosities if the matrix is 1) quartz or 2) calcite.
Motor M draws in the cable with an acceleration of 4 , measured relative to the 220 mine car. Determine the acceleration of the car. Neglect the mass of the pulleys.
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