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The 160- man climbs up the ladder and stops at the position after he senses that the ladder is on the verge of slipping. Determine the inclination θ of the ladder if the coefficient of static friction between the friction pad A and the ground is μs= 0.3. Assume the wall at B is smooth. The center of gravity for the man is at G. Neglect the weight of the ladder.
A traffic engineer is trying to design a left turn bay on an EB approach to an intersection. The signal timing for left turns will have 10 seconds of "left turn only" green time and 50 seconds of red time each signal cycle.
determine the constants sigma0 and k in the Hall petch equation of 70-30 brass sample.
Compute the required weight of coarse aggregate per cubic yard. to adjust the mix so as to increase the compressive strength, the water-to-cement ratio is reduced to 0.45. will the quantity of coarse aggregate increase, decrease, or stat the same
A disinfection process for potable water treatment is described by first order kinetics with a rate constant of 0.08 minute. An ideal plug flow reactor is used with a hydraulic residence time of 1 hour. What is the expected efficiency of the syste..
make an inline function g(x)= x+ cos(x^5). plot it using vectors x= -5:.1:5; and y= g(x);. what is wrong with this graph. find a way to make it look more like the graph of g(x) should turn in both plots.
A hollow circular shaft is loaded in pure torsion. Describe how the shear stress due to the applied torque varies on a cross section whose unit normal vector lies parallel to the long axis of the shaft.
The point of intersection of the tangents is located at station (948+67.32). If the design speed of the highway is 60mi/h, determine both the point of tangent and the deflection angles to whole stations for laying out the curve. Select appropriate..
a particle moving along a straight path decelerates according to a = -kv. this represent a drag-induced deceleration. assume that the intial velocity is vo at t=0 and s = 0. determine the velocity of the particle both
A sample with a measured background level (Bi) of 22 mg/l was spiked with the equivalent of 30 mg/l without appreciably changing the sample volume. The result for the spiked sample (Ai) was 49.2 mg/l. Calculate Pi and determine if it falls with th..
It was observed that the truck traveled a distance of 120 ft after the brake was engaged before coming to a complete stop. If instead the driver brings the truck to a velocity of 90 mph and completely engages the brake
The average slope distance of 500m was measured with utilizing infrared light with wavelength = .91 um has a modulating frequency at 24.5 MHz. At the time of the measurement, the temperature was 27 degrees C and the atmospheric pressure was 755.1 ..
Discuss the following examples: a) Car overheating b) Personal budget deficit c) Shower too hot or too cold In all the cases discuss first the normal condition and after that the problem condition.
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