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The distance between two points on a vertical photograph is ab and the corresponding ground distance is AB. For the following data, compute the average photographic scale along the line ab.
(a) ab = 2.41 in.; AB = 4820 ft
(b) ab = 5.29 in.; AB = 13,218 ft
(c) ab = 107.389 mm; AB = 536.943 m
Assuming constant acceleration, determine how long the train blocked the crossing. Dis- regard the width of the crossing.
The design of a concrete mix requires 1173kg/m3 of gravel in SSD condition, 582 kg/m3 of sand in SSD condition, and 157kg/m3 of free water. The gravel available at the job site has a moisture content of 0.8% and absorption of 1.5%
If a single deposit of $15,000 is invested at 2.75% yearly interest, what equal year-end withdrawls can be made each year for 10 years, leaving nothing in the fund after the 10th withdrawl
If the amount of heat transfer in the HE unit is 2460 kJ per kg of steam, what is the magnitude of shaft work obtained from the turbine in kW?
H = h - N Point B has a geoid correction of -100', and a NAVD88 elevation of 100'. What is the point B ellipse height
Calculate (a) the current and (b) the current density involved in the corrosion of the iron
You are to perform a dynamic pile load test on a24-inch OD open ended homogeneous pipe pile. The pile has a shellthickness of 0.5 inch and is 80 feet long. Calculate: Compression wave velocity(hint: E=29x106 psi, g=490 pcf)
Consider a mass of air at 18 ºC, which is located at 1,000 m. above mean sea level. A strong wind moves the air mass over a mountain range at 2,500 m. mean sea level and then the air descends to an elevation of 500 m on the leeward
Using the method of superposition, draw a neat labelled Bending Moment Diagram and Shear Force Diagram for the beam member shown in Figure 1, and determine the Bending stresses under maximum positive and negative bending moment.
The available relay for switching a secondary circuit requires 4 volts and has a coil resistance of 145 ohms. If a voltage divider circuit is used to reduce the voltage to activate the relay, what resistor is needed to create the necessary coil vo..
An engineer uses a standard technique for measuring the thickness of a clay landfill liner that has a typical standard deviation of 0.7 in. The project specifications require the liner thickness to be 36 inches or more, at least 95 percent of the tim..
A 16-ft [4.88 m] span beam is fixed at one end and simply supported at the other end. A single concentrated load of 9600 lb [42.7 kN] is placed at the center of the span.
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