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A small leaf spring, b = 10mm wide, 100mm long, and h mm deep, is subjected to a concentrated center load P varying continuously from 0 to 20 N. The spring may be approximated to be a simply supported beam (Figure P7.28). Calculate the required depth for a factor of safety of 4.
Given: Su = 980 MPa, Se = 400 MPa.
Design Decision: Apply the Goodman theory, based on the maximum normal stress.
intake air to turbocharger for internal combustion engine is 100kpa at 300k. determine the turbocharger pressure ratio
consider two identical rooms one with a refrigerator and one without one. if all the doors and windows are closed will
Three children are standing on a 5×5-m raft. The weights of the children at Points A, B, and C are 375 N, 260 N, and 400 N, respectively. If a fourth child of weight 425 N climbs onto the raft, determine where she should stand if the other children r..
a rigid tank contains 7.5 kg of saturated water mixture at 400 kpa. a valve at the bottom of the tank is now opened and
a piston-cylinder device initially contains 0.4 m3of air at 100 kpaand 80degc. the air is now compressed to 0.1 m3in
a river has a steady speed of 0.461 ms. a student swims upstream a distance of 1.00 km and swims back to the starting
A 8 m rectangular gate shown below weighing 200 N is held in place by a horizontal flexible cable as shown in the figure below. Water acts against the gate which is hinged (frictionless hinge) at point A. determine the tension in the cable.
question it is observed that snow lies stably on roofs with a slope of less than 24deg but that it slides off roofs
Design project, I chose a scissor lift table. My issue is finding a a roller to fit my design with 1 in od, press fit on > 5 in shaft that can support 125-150 lb/shaft. dimensions can be modified but the shaft strength is the real issue.
lf a flexible plastic line with a 20-mm inside diameter could be installed from the lake to the village, what theoretical flow rate is possible, ignoring all losses?
a simple wheatstone bridge as shown in fig. 7.10 is used to determine accurately the value of an unknown resistance r1
a retarding force is applied to a body moving in a straight line so that during an interval of its motion its speed u
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