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What is the tension needed to pull a rubber by a distannce z= 10nm at 25 c? Number of individual chains in the rubber, N=1000, bond vector length b=2 Angstrom.Please give your answer in pico Newton - pN
a conveyor belt runs on 3 in. drums that are driven by a motor. if it takes 6 seconds for the belt to go from zero to
link bc is 6 mm thick and is made of a steel with a 450-mpa ultimate strength in tension. what should be its width w if
Determine the resultant of the three forces F1 = 2.0i + 3.3j - 2.6k; F2 = - i + 5.2j - 2.9k; and F3 = 8.3i - 6.6j + 5.8k, which are concurrent at the point (2, 2, -5.). The forces are in Newton's and the distances are in meters.
water is heated by air in a heat exchanger. the water enters at 150 c and 0.2 mpa and leaves at 300 c and 0.2 mpa. the
air is adiabatically compressed in a non flow process from a pressure of 14.7 psia and temperature of 70 degrees to 200
nylon 12 is produced by step growth polymerization.a estimate the extent of reaction monomer conversion necessary to
Velocity and Acceleration Analysis of mechanism. The mechanism in Fig. 5.54 has the dimensions: AB=200 mm, AC=600 mm, BD=1000 mm, La=150 mm, and Lb=250 mm. The driver link 1 rotates with a constant angular speed of n=60 rpm. Find the velocities and t..
given the velocity field v 10x2 y i 15 y z j - 3xy-25t k finda the acceleration of a fluid element at a point 12-1 at
a medical warmer operates using a heat pump. saturated r-12 enters the compressor at a temperature of -10 c and exits
how to derive the constitutive expression for stress in a Newtonian fluid. How to derive Navier-stokes equation for compressible, incompressible, and invicid flows.
the total solidification times of three casting shapes are to be compared 1 a sphere with diameter 10 cm 2 a cylinder
a cross-sectional view of a double-pipe heat exchanger. the fluid in the central pipe is an evaporating liquid while
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