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1.What is the annual equivalent value of ageometrically increasing series of payments which has first-yearbase of $15,000 increasing by 10% per year for 10 years with aninterest rate of 7% compounded monthly?
2.A man can carry in a day 40 kg over adistance of 30 km.
Assume he has to reach a town 300km away, and that the 40 kg he carries includes both merchandiseand the food necessary for his sustenance during the trip at 2000Cal/day.
Compare his efficiency in that trip (in Cal/kg of merchandise carried) with that of a 35mile/gallon car carrying 250 kg of merchandise.
Which is more efficient?
A 0.25 in diameter copper rod BC is securely attached between two identical 1 in diameter steel rods (AB and CD). Find the load P if the total elongation of the system is measured to be 0.0312 in. Esteel= 29,000ksi, Ecopper=17,000ksi.
A regular hexagonal pyramid has an upper base edge of 16 ft. and a lower base edge of 28 ft. if the volume of the frustum is 18041 ft^3., find the lateral area of the frustum.
The moto draws in the cable at D with a constant acceleration of aD=8 m/s^2. If vD=0 when t=0, determine: a) the time needed for block A to rise 3 m b)the relative velocity of block A with respect to block B when this occurs.
a volumen of 20 cu ft of air at pressure of 50 psig is heated and expanded and to 30 cu ft and 40psig find the changes in the energy of air in jouls.
A rigid open cylinder having an inside diameter of 15 mm contains a column of water 500 mm long at 20 degrees C. If a compressive force of 2 kN is applied to the top of the water column by a frictionless 15 mm piston
Calculate the peak bending moment for the 4x10 roof beam. Then draw a clear dimensioned FBD for the two exterior bearing walls above the floor joists, no moment calcs here.
A maximum flow rate of 6 CFS is available for a river model. This corresponds to 30,000 CFS for the prototype. What is the scale of the model in terms of the prototype size
The rotor of an electric generator is rotating at 200 when the motor is turned off. Due to frictional effects, the angular acceleration of the rotor after the motor is turned off is α=-0.01ω rad/s^2
An equal-tangent crest curve connects a +2% initial grade with a -1% final grade, and is designed for 55mi/h. The station of the PVI is 233 + 40 with elevation 1203 ft. What is the elevation of the curve at station 234+00
If the average length of a vehicle is 15 ft and the average space between consecutive vehicles waiting to be served is 3 ft, what is the minimum length for the off-ramp to provide storage for all exiting vehicles 80 percent of the time
The flowrate (q) per unit lenght (ft^2/s) over the spillway shown below is a fuction of the upstream heah H, the acceleration due to gravity g, and the spillway height P.
A 900-mm strip of steel is bent into a full circle by two couples applied. Determine (a) the maximum thickness t of the strip if the allowable stress of the steel is 420 MPa, (b) the corresponding moment M of the couples.
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