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1. A mason stretches a string between two points 50 ft apart on the same level with a tension of 10 lb at each end. If the string weighs 0.1 lb, determine the sag h at the middle of the string.
2. The Golden Gate Bridge in San Francisco has a main span of 4200 ft, a sag of 470 ft, and a total static loading of 21,300 lb per lineal foot of horizontal measurement. The weight of both of the main cables is included in this figure and is assumed to be uniformly distributed along the horizontal.
A power tug is towing a barge with a cable which has a mass of 14 kg per meter of its length. It is observed that the tangent to the cable at point A is horizontal. Determine the tensions at A and B.
at the beginning of the compression stage in an air-standard diesel cycle the conditions are p 200 kpa and t 380k. the
a pressure relief valve contains a poppet with a 4.20 cm2 area on which system pressure acts. during assembly a spring
A simple Rankine cycle with water as the working fluid operates between the pressure limits of 15 MPa in the boiler and 100 kPa in the condenser. Saturated steam vapor enters a turbine. Irreversibilities in the turbine cause the turbine to be 70 perc..
a car is traveling north along a straight road at 50 kmh. an instrument in the car indicates that the wind is directed
a high-velocity water jet at 30 degrees celcious is proposed for use as a cutting device with possible applications in
the pistoncylinder contains 0.1 kg r-410a at 600 kpa 60oc. it is now cooled so the volume is reduced to half of the
a heat exchanger for cooling electronic components is fabricated with two aluminum plates separated by aluminum fins
2 forces are acting -20 and 20 ft away from the origin. each force is 1000 lbf and they are acting 60 degrees from the
the acceleration of a particle moving along a straight line is inversely proportional to its speed with the constant of
write an appraisal of mathcad including a comparison with mathlab. describe another feature of mathcad, giving examples of how it can be used.
Aim of this demonstration is to use measurements of the load required to propagate a crack (tear) in packaging tape to determine its fracture toughness and Describe the fracture behaviour of the insulation tape loaded with a small crack. Explain w..
three particles are sliding along a flat frictionless surface ma 0.4 kg mb 0.5 kg and mc 0.4 kg. before any
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