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1.An engineer deposits $10,000 in a savings account on the daytheir daughter is born. They also deposit an additional $1000 onevery birthday after that. The account has a 5% nominal interestrate, compounded continuosly. How much money will be the accountthe day after her 21st birthday?
a. $36,200 b. $41,300 c.$64,800 d. 84,300
2.A 5-m-diameter parachute of a new design is to be used to transporta load from flight altitude to the ground with an average verticalspeed of 3 m/s. The total weight of the load and theparachute is 200 N. Determine the approximate dragcoefficient for the parachute.
Maintenance expenses for a bridge in west Tennessee are estimated to be $200,000 for the first eight years followed by two separate million dollar expenditures in years 12 and 18. The expected life of the bridge is thirty years.
A 12-in. square concrete pile is driven into clay to a depth of 40 feet. Unit weight is 115 pcf, and qu is 2000 ksf. Find the pile's design capacity if the factor of safety is 2.
At the minimum volume reached during shrinkage, a specimen of soil has a void ratio of 0.87. if Gs = 2.72, calculate the shrinkage limit
A water tank has a height of 120m, and its area of cross-section is 2000m. Water is released from the tank and the water level drops by 1 meter every minute. Find the rate of change in volume.
Determine the maximum radius R (to the nearest 10m) so that there are at least 200m of tangent between the two curve systems and determine the Pl, ST., and CPI stations
It is required to dewater a construction site 80 m by 80 m. The bottom of the construction will be 1.5 m below the initial water surface elevation of 90 m. Four pumps are to be used in 0.5-m diameter wells at the four corners of the site.
Complete a maximum demand calculation for a fully air conditioned hospital with the following electrical equipment and outlets. 500, 28W lamps 200, 14W lamps 400, 10A socket outlets 5, 18A, 3 phase, air conditioning units
Field tests have shown that the Horton equation best describes the composite roughness of the channel. Find the capacity of the main channel and the lateral extent of the floodplains for a 100-year flow of 1590m^3/s.
A 4 in. in diameter shaft moves through a well-oiled sleeve that is 12 in. long. The force required to move the shaft is 25 lbf, and the shaft velocity is 5 in./s.
a lagoon is 20 ft by 80 ft with a depth of 5.5 ft .Wastewater from households flow into the lagoon at 260 gal/day .How many days would it take to fill the lagoon
A river flows towards a lake with a velocity of 3 m/s and rate of 500 m3/s at a location of 90 m above the lake surface. Determine the total power generation potential of the river at that location.
you are designing a highway to AASHTO guidelines on rolling terrain where the design speed will be 65 mi/hr. At one section, a +1.25% grade and a -2.25% grade must be connected with and equal tangent vertical curve.
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