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Suppose that in a senior college class of 500 students it is found that 210 smoke, 258 drink alcoholic beverages, 216 eat between meals, 122 smoke and drink alcoholic beverages, 83 eat between meals and drink alcoholic beverages, 97 smoke and eat between meals, and 62 engage in all three of these bad health practices. If a member of this senior class is selected at random, find the probability that the student,
(a) Smokes but does not drink alcoholic beverages.
(b) Eats between meals and drinks alcoholic beverages but does not smoke.
(c) Neither smokes nor eats between meals.
A study of the traffic using a tunnel showed that the following speed-concentration relationship applies. Find the capacity of the tunnel, the values of speed and oncentration at capacity, and the jam concentration.
A normally consolidated clay layer in the field has a thickness of 3.2 m with an average effective stress of 70 kN/m^2. A laboratory consolidation test on the clay gave the following results: Pressure (kN/m^2)=100, 200 Void Ratio=0.905, 0.815
During construction of a highway project, a soil sample was taken from compacted earth for a sand-cone in place denstiy test. The following data were obtained from the test. Weight of sand used to fill test hole and funnel of sand-cone device= 845..
Provided that the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about 20 Hz to about 20000Hz. Compute the wavelength corresponding to these frequencies
A vertical crest curve has an approach grade +6% and a departure grade -6%. The Vertical intersection point level is 125 m. It is proposed to use a curve 720 m long. Calculate the level at TPl.
At the proportional limit, . gage length of a -diameter alloy rod has elongated . and the diameter has been reduced . The total tension force on the rod was . Determine the following properties of the material
Calculate the percentage of change in total volume with respect to its initial volume when a specimen of this clay is completely dried from a water content of 80%. Assume that the clay remains saturated from liquid limit to shrinkage limit.
The traffic that makes a left turnat an intersection consists of two types of vehicles, Type A andB. A type A vehicle is twice the length of the type B. THe left turn lane can accommodate ten vehicles of type B, five oftype A.
A lunar module weights 1500 kg on earth where g = 9.75 mps2. On the surface of the moon where g = 1.70 mps2, what will be the force in Newtons required to accelerate the module at 10 mps2?
Consider a DVD To protect sensitive information within the storage medium, a vwery thin film of reactive polymer is embedded within the polycarbonate at a distance of d= 0.5 mm from the surface.
If the footings fails at a load of 82 kN, what is the failure load per unit area on the base of a square footing 2.0 m by 2.0 m loaded with its base at the same depth in the same materials
Figure out the times he was at each of these companies, who else was there at the time and how they might have collaborated. Include the technologies that were in use or being developed.
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