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A solid wood door 1.00 m wide and 2.00 m high is hinged along one side and has a total mass of 40.0 kg. Initially open and at rest,the door is struck at its center by a handfuIof sticky mud w ith mass O.5 kg, travelling perpendicular to the door at 12.0 m/s just before impact. Find the final angular speed of the door.
Thin walled box beam with end load at an angle. A box beam made from an extruded aluminium ally having 5 414 mm wall thickness is loaded by an inclined force P=100 N
The diffusivity of copper in a commercial brass alloy is 10^-20 m2/s at 400 degrees C. The activation energy for diffusion of copper in this system is 195 kJ/mol. Calculate the diffusivity at 600 degrees C.
in a water heating system cold water at 5 c flowing at a rate of 5 kgs is mixed adiabatically with hot water at 80 c
air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 f to 15 psia. employing
a boy with a weight of 150 lbs is at rest when the swing makes an angle of 30o with the vertical. his center of gravity
suppose you need a wire with a tensile strength of 80 ksi and a diameter of 0.19 inches. your starting material is a 1
A flat plate having an area of 10 m^2 and a temperature of 327 C is exposed to air at 27 C. the convective heat transfer coefficient is 15 W/m^3.C and the emissivity of the plate is 0.80.
a group of students is developing a plan to deliver water from a lake to a downhill village. the students plan to use a
a 3-lb collar can slide on a horizontal rod which is free to rotate about a vertical shaft. the collar is intially held
the combustion products in an internal combustion engine undergo an expansion process from an initial volume of 0.007
a rigid tank is divided into two equal parts by a partition. one part of the tank contains 9.2 kg of compressed liquid
block b has a mass m and is released from rest when it is on top of cart a which has a mass of 3m. determine the
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