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Conduct a powder factor design for the following conditions: -Rock is iron ore; density is 5370 lb/cubic yards -Rock swells 60% from in situ when broken -Bench height is 45ft -Drill hole diameter is 12.25 inches -Explosive product will be 500lbs of Titan 1030 in the bottom of the hole to pull the toe and ANFO (Ge = 0.85) in the remainder of the hole -B:S = 1:1.2 -Use Konya's formula to determine B, and average (Rule of Thumb) value for J, T, PC, etc -Design for a Powder Factor of 0.70 lb/ton -How many holes are required to break 250,000 tons?
Obstruction due to underground electric lines requires that the x coordinate location of point C must be three feet as shown in the figure, as opposed to 1.5 ft for point B. Determine the magnitude of the resultant of the two forces
the rig shown consists of a 1200-lb horizontal member abc and a vertical member dbe welded together at b. the rig is
A long line of burning agricultural waste emits 0.3 g/m/s of particulate matter on a clear fall afternoon with winds blowing 3 m/s perpendicular to the line. Estimate the ground-level particulate concentration 400 m downwind from the line.
What are 3 of the equivalent fixed-point problems for f(x) = x2 - x -2=0?
A cylinder fitted with a piston has a volume of 2ft^3 and contains 0.5 lbm of steam at 60 psia. Heat is tranferred to the stream until the temperatureis 500 F, while the pressure remains constant
Determine the magnitude of the average force acting on a highway bumper when a 5000-lb car traveling at 60 mph crashes against it. The time interval during which the car is brought to rest is 0.3 s.
Calculate the radius of a palladium atom, given that Pd has an FCCcrystal structure, a density of 12.0 g/cm^3 , and an atomic weightof 106.4 g/mol.
A saturated sample of clay with an sl 20 has a natural water content of 32%. What would its dry volume be as a percentage of its original volume of Gs.= 2.67.
The three blocks shown move move with constant velocities. Find the velocity of each block, knowing that the relative velocity of A with respect to C is 300 mm/s upward and that the relative velocity of B with respect to A is 200 mm/s downward.
what was involved in the first far-reaching, comprehensive study of Earth's oceans?
For a ternary system, three components are present; temperature is also a variable. What is the maximum number of phases that may be present for a ternary system, assuming that pressure is held constant
A wood mallet has a cylindrical head 6 inches long and 3 inches in diameter. If the cylindrical head is 1 inch in diameter how long must it be for the mallet to balance at a point 6 inches from where the handle enters the mallet? (use 40 lb / ft cube..
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