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An engineering student is driving on a level roadway and sees a construction sign 180 m ahead in the middle of the roadway. The student strikes the sign at 56 kph. If the student was traveling at 90 kph when the sign was first spotted, what was the student's associated perception-reaction time?
A water treatment plant is being designed to process 50,000 m3/d of water. Jar testing and pilot-plant analysis indicate that an alum dosage of 40 mg/L with flocculation at a Gt value of 4.0 × 10^4 produce optimal results at expected water temperatur..
An insulated rigid tank is divided into two equal parts by a partition. Initially, one part contains 4 kg of an ideal gas at 800 kPa and 50°C, and the other part is evacuated.
Imagine two small towns of 1,000 people: Blacktop and Parktown. In the urban sprawl that is Blacktop, all the residents own fuel-efficient cars (15 km/liter) and travel an average of 20,000 km per year.
The weight of a sample of coarse aggregate was measured under various conditions with the following results:
Plot the relationship between the approach speed v and the length of the dilemma zone for the following data: a2 = 0.5g, ?2 = 1.0s,w = 65ft, L = 15ft, and ? = 4.5s (where a2 is the acceleration, ?2 is the perception reaction time, w isthe width of th..
Compare the behaviour of steel and reinforced concrete structural under load
find the inertia tensor about the origin for a mass of uniform density=1,inside the part of the unit sphere where x>0,y>0,and find the principal moments of inertia and the principal axes.
Describe the tooling and equipment that would be necessary to perform the double-lock seaming operation shown in Fig. 32.17, starting with a thin, flat sheet.
A combined pitot static tube has a coefficient of 0.98. Thedifferential head reading is 0.874m of water when it is positionedon the centreline of a pipe of constant diameter.
Steam at 0.6 MPa and 200?C enters an insulated nozzle with a velocity of 50 m/s. It leaves at a pressure of 0.15 MPa and a velocity of 600 m/s. Determine the final temperature if the steam is superheated in the final state and the quality if it is..
What is the diameter of a circular concrete column needed to support a load of 300,000 pounds with a factor of safety of 2? Round the diameter up to the whole inch. The concrete ultimate strength is 3000 lb/in^2.
The uniform load has a mass of 450 and is lifted using a uniform 35- strongback beam and four ropes. Determine the Tension in the ropes Determine the force that must be applied at A.
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