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A 3 mm thick aluminum sheet is cut with a 4 cm diameter round punch. If the punch exerts a force of 6 kN, what is the shear stress in the sheet? Report the answer in MPa.
calculate the force necessary to accelerate a 20 kg 400mm diameter sphere which is at rest under water at the rate of 5
Assuming that in drawing of cups, the thickness of the cup bottom and wall is the same as that of the original sheet, ?nd an expression for the ratio of the cup height to diameter, h/d1, in terms of the ratio of blank diameter to cup diameter, do/d..
The propagation is in the positive z direction. Find E and H for TM modes. Assume perfect conductors for the plates and free space between the plates.
the motion of a linkage in a mechanical system is examined by engineers. it has been determined that the velocity of an
it is desired to produce refrigeration at -25f. a heat source is available at 500f and the ambient temperature is 80f.
find the aproximate dimensions of a pin so that the bearing and tearout of the plate happen simotaniously menaing the
a cylindrical casting is 0.4 m in diameter and 0.6 m in length. another casting of the same metal is rectangular in
Ferrous metal, nonferrous metal, steel and powdered metals are all examples of:
If N = 120 chips attached to the outer surfaces of the heat sink maintain an approximately uniform surface temperature of T 2 = 50°C and all of the heat dissipated by the chips is assumed to be transferred to the coolant, what is the heat dissipat..
gas with an initial volume of 0.36 m3 is slowly compressed to a final volume of 0.16 m3 by a process during which the
a j type thermocouple referenced at 70f has a measured emf of 2.878mv. what is the tempature of the measured
an aircraft is slowed after landing by dual parachutes deployed from the rear. each parachute is 3.66m in diameter. the
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