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Compute the torsional stiffness (GJR) of the beam in given Example.
Example
Compute the bending stiffness of a cantilever I-beam (Figure below) of length L = 30 cm, subjected to a tip-shear force Vz = 445 N. The dimensions of the beam are: h = 2.5 cm, b = h/2, t = h/16. The material is Kevlar-epoxy with the following elastic constants: E1 = 76.0 GP a, E2 = 5.56 GP a, G12 = 2.30 GP a, ν12 = 0.34. The lay-up sequence is [±30/0]S, six laminae (n = 6), with lamina thickness tk = t/6.
two large parallel conducting plates are 21 cm apart and have charges of equal magnitude and opposite sign on their
Two objects form a closed system. One object, which is at 400 K, absorbs 25.0 kJ of heat from the other object,which is at 500 K. What is the net change in entropy ΔSsys of the system? Assume that the temperatures of the objects do not change appr..
A hot copper pot of mass of 2kg including the lid is at a temperature of 150 degrees celcius. You pour 14g of cool water at 25 degrees celcius in to the pot and quickly close the lid so no steam can escape. Find the final temperature of the pot an..
Determine the radius of curvature ρ of the vertical profile of the road at A.
you drop a 1.8 kg textbook to a friend who stands on the ground 12 m below the textbook with outstretched hands 1.50 m
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Water flows at a rate of 21 through a horizontal 8.0--diameter pipe under a pressure of 10.6 . At one point, calcium deposits reduce the cross-sectional area of the pipe to 28 . What is the pressure at this point? (Consider the water to be an ideal f..
A certain species of ionized atoms produces an emission line spectrum according to the Bohr model, but the number of protons Z in the nucleus is unknown. Obtain the next-to-the-longest wavelength in the series of lines
Spiderman, whose mass is 72.0 kg, is dangling on the free end of a 11.4-m-long rope, How much work was done by the gravitational force on Spiderman in this maneuver
What is the value of the kinetic energy of the block when it reaches B? How much work does the kinetic frictional force do during the BC segment of the trip?
Light from a laser strikes a diffraction grating that has 4250 grooves per centimeter. Find the wavelength of the laser
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