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In a surface grinding operation wheel diameter = 150 mm and in feed = 0.07 mm. Wheel speed = 1450 m/min, work speed = 0.25 m/s, and cross feed = 5 mm. The number of active grits per area of wheel surface = 0.75 grits/mm2 . Determine
(a) average length per chip,
(b) metal removal rate, and
(c) number of chips formed per unit time for the portion of the operation when the wheel is engaged in the work.
calculate the minimum possible magnitude u of the muzzle velocity which a projectile must have when fired from point a
a steam power plant implements an ideal reheat rankine cycle. steam enters the inlet of the high-pressure turbine at 8
The counterflow, concentric tube heat exchanger of Example 11.1 is replaced with a compact, plate-type heat exchanger that consists of a stack of thin metal sheets, separated by N gaps of width a.
The following is a diagram shows refraction of a light beam at the interface of two media. The incidence and refraction angles are measured to be 45 deg and 30 deg respectively. Will total reflection happen when the light beam shins from the top to t..
Calculate the flow rate in gpm of a hydrocarbon stream (specific gravity equal to 0.65) though a 3-inch equal percentage valve that is 40% open based on stem position for the Cv given in Table 1 and the installed pressure drop in table 2
a 4140 steel alloy beam is designed to support a load at 50 of the yield stress. the beam is bolted to a bridge truss
problem a 5x5 plate with a crack size of 2a1.5 is under a spectrum load as shown below. the plate has a yield strength
the track for a racing event was designed so that riders jump off the slope at 30 degrees from a height of 5 ft. the
ammonia vapor flows through a valve. it enters the valve at a pressure of 8 bar and a temperature of 120c and after
A ball is projected vertically with a velocity of 40m/s. Three seconds later, a second ball is projected vertically with a velocity of 30m/s. At what point in the air will these balls meet?
Consider a cargo vehicle that will travel back and forth between the moon and LEO that is propelled by an electric propulsion system on a slow spiral trajectory. Assume that the characteristic velocity change (?v) for this mission is ?v=6,800 m/s.
When a 60-N stone is attached to a spring scale and is submerged in water, the spring scale reads 40 N. What is the specific gravity of the stone?
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