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A steel pipe of 12-in outer diamer is fabricated from 1/4-in-thick plate by welding along a helix that forms an angle of 25 degrees with a plane perpendicular to the axis of the pipe. Knowing that the maximum allowable normal and shearing stresses in the directions respectively normal and tangential to the weld are s = 12 ksi and t = 7.2 ksi, determine the magnitude P of the largest axial force that can be applied to the pipe.
a rigid tank is divided into two equal parts by a partition. one part of the tank contains 9.2 kg of compressed liquid
a researcher reported a correlation of 1.25 between an iq test and grades in epy 6214. which one of the following
cooling water circulates through a water jacket enclosing a housing filled with electronic components. at steady state
problem 1 a ball is thrown from atop a cliff with an initial speed of 30 ms at an angle of 40o above the horizontal.
we break a stick at a uniformly chosen random location. find the probability that the shorter piece is less than 15th
the lower yield point for an iron that has an average grain diameter of 5 x10-2 mm is 135 mpa 19500 psi. at a grain
steam enters a well-insulated turbine operating at steady state with negligible velocity at 4 mpa 320c. the steam
1. describe the three most common causes of strength degradation of mechanical components. give examples of each with
in hydroelectric power plant water at 20 celcius. is supplied to turbine at a rate of 0.6m3s through 200m long
three forces acting on an object are given by f1 -2.00i 2.00j n f2 5.00i -3.00j n and f3 -45.oi n. the object
a new high- temperautre alloy is to be used for a 3-mm diameter tensile support member for an impact-sensistive
neptune has equatorial diameter of 49532 km and mass 1.0247 x 1026 kg. if the planet is modeled as a homogeneous
a plate fin heat exchanger for truck is designed to cool high temperature and high pressure oil using high pressure
Evaluate the effect of the water spray on efficiency (net work out divided by heat input) and net power out per kg/s of dry air coming into the turbine.
consider a vertical plate of dimension 0.25 m x 0.50 m that is at ts100 c in a quiescent environment at t infinity 20
A steel rod 1 cm in diameter and 30 cm long protrudes from a steel surface at 150 C. The rod is surrounded by air at 10 C with a convective heat transfer coefficient of 10 W/m2 C. The thermal conductivity of steel is 114 W/m C. Determine the heat ..
Starting from rest the motorboat travels around the circular path,P = 50m , at a speed v=(0.8t)m/s, where t is in seconds. Determine the magnitude of the boat's velocity when it has traveled 40m. Determine the magnitude of the boat's acceleration ..
an agitation system is to be designed for a fluid having a density of 950kgm3 and viscosity of 0.005pas. the vessel
a projectile mass m travels along the posotive x coordinate direction at a speed of 300 ms breaks into three parts m1
a manometer is connected to a water pipe to measure the pressure at the center of the pipe. the manometer is
a 12-mm diameter jet of water discharges vertically into the atmosphere. due to surface tension the pressure inside the
steam enters a well-insulated turbine operating at steady state at p14mpa t1320c and a velocity v110ms. the steam
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