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The uniform 4 meter boom has a mass of 60 kg and is pivoted to the back of the truck at A and secured by a cable at C. Calculate the magnitude of the total force supported by the connection at A if the truck starts from rest with an acceleration of 5 m/s^2. Answer is A=1192 N Distance from A to B=4 m at 120 degree angle relative to the line AC Distance from A to C= 2m
calculate the density and specific weight of carbon dioxide at a pressure of 300 kN/m^2 absolute and 60º C
to achive a specific level of disinfection a water treatment plant operator determines the" Ct" value 180mg min/l is necessary with units for disinfectant concentration C in mg/l and disinfectant contact time t in minutes
A 1.2-in. rainfall occurs in a 6-hour duration. If this represents an exceedence probability of 10%, what is the probability it will be equaled or exceeded at least once in the next 3 years. What is the probability it will be equaled or exceeded e..
The driver strikes the sign at a speed of 25 mi/h. If the student was traveling at 55 mi/h when the sign was spotted, what was the drivers associated reaction time in seconds
Two level sections of an east-west highway (G=0) are to be connected. Currently, the two sections of highway are separated by a 4000-ft (horizontal distance), 2% grade. The western most section of highway is the higher of the two and is at elevati..
A customer randomly select 2 of 10 books to purchase. How many combinations of 2 books can be selected
Important information about Mechanical engineering dynamics, A 3000 lb car rests on a horizontal street out of gas with its brakes locked.
Calculate the area of a circular tract of land which has a radius of 30 meters using the mathematical formula, Trapezoidal Rule, and Simpson's Rule. Compare your results. Use an offset of 5 meters.
An ocean outfall diffuser that discharges treated wastewater into the Pacific Ocean is 500m from a public beach. The wastewater contains 105 coliform bacteria per milliliter. The wastewater discharge flow rate is 0.3 m3/s.
Estimate the weight of concrete in a four-lane highway segment that begins as a 3% grade climb from 1000 feet altitude to 4000 feet and then a 6% downgrade to 2500 feet
The PI is at station 250+50, the design speed is 65mi/h, and a maximum superelevation of 0.07 ft/ft is to be used. If the central angle of the curve is 38 degrees, design a curve for the highway by computing the radius and stationing of PC and PT.
If bod5 and ultimate bod of a municipal wastewater are 200mg/l and 457 mg/l respectively what is the reaction rate constant? a) .265 b) .050 c) .115 d) .165
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