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Determine the ratio of butadiene to syrene mers in a copolymer having a weight average molecular weight of 350,000 g/mol and weight average degree of polymerization of 44251 The number average molecular weight of polystyrene is 250,000 g/mol. Compute the number average degree of polymerization (atomic weight of C= 12, H=1)
The two mooring cables exert forces on the stern of a ship. Represent each force as a Cartesian vector and determine the magnitude and direction of the resultant.
at a ski resort water at 40 f is pumped through a 3-in diameter 2000ft long steel pipe from a pond at an elevation of
an electric wire made of c14500 copper is stretched between two street supports at 20degc so that a stress of 40 mpa is
one kilogram of water fills a 150-l rigid container at an initial pressure of 2 mpa. the container is then cooled to 40
a distillation column as shown in the figure to the right is a device used to separate components with different
design a compound gear train that yields a train value of 3001. from interference considerations no pinion shouicl have
determine the steady state rate of heat transfer per unit area through a 4.0 cm thick homogeneous slab with its two
the motion of a particle is defined by the position vector r=a(cos t + t sin t)i + A(sin t-t cos t)j, where t is expressed in seconds. Determine the values of t for which the position vector and acceleration are.
Find flow rate A siphon made of a 1 in-inside-diameter pipe is used to maintain a constant level in a 20 ft-deep tank
an emergency fire control system on a public building has a pressurized tank on top of the bulding and is connected
The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.
a steam turbine has an inlet pressure of 1200 kpa and temperature of 400 degc. the steam exits the turbine at a
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