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The motion of the uniform slender rod of length L=0.5 m and mass m= 3 kg is guided by pins at A and B that slide freely in frictionless slots, circular and horizontel, cut into a vertical plate. Knowing that at the instant shown the rod has an angular velocity of 3 rad/s counterclockwise and theta= 30 degrees, determine reactions at point A and point B.
Refrigerant 134a at 700 kPa and 40oC is expanded adiabatically in a closed system to 60 kPa. Determine the work produced, in kJ/kg, and final enthalpy for an isentropic expansion efficiency of 80.
a 1.5 ton crate is hoisted by three steel wires. Each wire is 1/4 in in diameter and each wire carries one-thired of the load. Determine the stress in each of the wires.
Use a suitable method to predict the racS,T variation along these plates when a= e= 0.1, 0.5, and 0.8 and emissions and reflections are diffuse.
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
hot air is contained in a vertical frictionless piston-cylinder device.the piston has a mass of 4 kg and a
the two bars shown in the figure are used to support a load p. when unloaded joint b has coordinates 0 0. after load p
an airplane wing modeled as a spring-mass system with natural frequency 40 hz is driven harmonically by the rotation of
mercury is often used in barometers. this is because tje vapor pressure of mercury is low enough to be ignored and
a cylindrical specimen of a brass alloy 10.0 mm 0.39 in. in diameter and 120.0 mm 4.72 in. long is pulled in tension
a convergent-divergent nozzle with an exit-to-throat area ratio of 1.616 has exit and reservoir pressures equal to
the basketball player likes to release his foul shots with an initial speed v0 23.5ftsec. what values of the initial
a and b are shooting a movie scene in which a needs to pass a gun to b. stuntman b is supposed to start falling
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