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The rod OA rotates clockwise with a constant angular velocity of 6 rad> s. Two pin-connected slider blocks, located at B, move freely on OA and the curved rod whose shape is a limaçon described by the equation r = 200(2 - cos u) mm. Determine the speed of the slider blocks at the instant u = 150°.
12-173. Determine the magnitude of the acceleration of the slider blocks in Prob. 12-172 when u = 150°.
*12-176. The car travels around the circular track with a constant speed of 20 m> s. Determine the car's radial and transverse components of velocity and acceleration at the instant u = p>4 rad.
12-177. The car travels around the circular track such that its transverse component is u = (0.006t2) rad, where t is in seconds. Determine the car's radial and transverse components of velocity and acceleration at the instant t = 4 s.
a 20-mm diameter rod made of a ductile material with a yield strength of 350 mpa is subjected to torque of 100 n.m and
A container filled with 97 kg of liquid water at 95ºC is placed in a 82-m3 room that is initially at 13ºC and 1 atm. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room.
steam at 1 bar enters an adiabatic heat exchanger with a quality of 0.901 and exits as a saturated liquid. the steam is
the length of a cast iron pipe is to be 4200 ft. the head causing flow is to be 12.6 ft. after the pipe has been in
a belt pulley is fastened to a 75 mm shaft running at 360 rpm by means of a key 18 mm wide and 125 mm long. the
Heat is transferred steadily through a 0.2-m thick, 8m x 2 m wall at a rate of 2.6 kW. The inner and outer surface temperatures of the wall are 15 °C and 5 °C respectively. Find the average thermal conductivity of the wall.
Calculate the vacancy concentration in aluminum at 50%, 70%, and 90% of TMP=923 K. Gvf = 0.66 eV, and k = 8.62 x 10-5 eV/K. Calculate ln (nv/N) and 1/T, and plot on a linear scale (hint: should be a straight line).
a container has a circular hole d5cm on the bottom and is sealed by a metal ball weighs w2.452 with radius 4cm. water
a bridge to be fabricated of steel girders is designed to be 500 m long and 12 m wide at ambient temperature assumed 20
Suppose that the outside of the tube has a uniform temperature of 290 K. Determine the average condensation heat transfer coefficient of the tube.
A piston-cylinder assembly undergoes a cycle consisting of the following three processes: Compression with constant internal energy. Constant-pressure expansion with W_3-1=12.5 kJ
Find the tension in the cable when the sub is (a) hanging above the water, and (b) once the sub is lowered into the sea water. When released from the cable, will the bell tend to sink or float?
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