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Three children are standing on a 5×5-m raft. The weights of the children at Points A, B, and C are 375 N, 260 N, and 400 N, respectively. If a fourth child of weight 425 N climbs onto the raft, determine where she should stand if the other children remain in the positions shown and the line of action of the resultant of the four weights is to pass through the center of the raft.
a bronze alloy exhibits a yield strength of 350 x 106 pa and a modulus of elasticity of 150 x 109 pa. if a cylindrical
h injection molding was portions of the part not filling. List and explain three process parameters that may aid in the correction of this error. What other errors might adjustments in these parameters help allay?
a heater is required to supply the domestic hot water dhw in a 50 unit apartment building where the dhw load is
in the bird-on-a-wire group work example how do you expect the angle and tension to be related? remember that this is
air enters a compressor operating at steady state with a pressure of 1 bar a temperature of 20degc and a volumetric
the data below give steady state creep rates dedt for a metal alloy as a function of temperature and stress.temp
an amusement ride consists of a large horizontal circular platform turning at 12 rpm. people attempt to sit on this
a gas turbine engine has a pressure ratio of 9.2 to 1 and operates on an ideal brayton cycle. assume air enters at 25 c
the state liquid water is changed from 50 pisa and 50 f to 200 pisa and 100 f. determine the change in the internal
Outside air at 1 bar, 5 °C and RH 70% is heated to 25 °C. The flow rate of air is 50 m 3/min. Find (a) the final relative humidity, (b) the rate of heat transfer (in kW) needed to heat up the air?
consider the ocean thermal energy conversion system given in the lecture notes. also take into consideration that
air is compressed in an isentropic process from an initial pressure and temperature of p1 90 kpa and t1 22 oc to a
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