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As fresh poured concrete hardens, the chemical transformation releases energy at a rate of 2 W/kg. Assume the center of a poured layer does not have any heat loss and that it has an average heat capacity of 0.9 kJ/kg K. Find the temperature rise during 1 hour of the hardening (curing) process.
Describe when each type of failure occurs: direct tension, direct compression, column buckling, direct shear, torsional shear stress, bending stress
Draw the stress distribution along the walled thickness and discuss whether the composite with the applied pressure is safe or not by using von-Mises and Tresca theory.
a carefully controlled tensile test is conducted on a metal alloy specimen. the original diameter is 10 mm and the gage
consider the heating of an incompressible fluid with velocity um inside a thin - walled tube. the diameter of the tube
Draw free body diagrams and show coordinate system. Problem 1: An archer shoots an arrow vertically upward. If the arrow ascends to a maximum height of 100 feet.
a gymnast of weight 720n is holding himself in the cross position on the high rings. he is quite still. draw a
a 200 3 250-mm panel of mass 20 kg is supported by hinges along edge ab. cable cde is attached to the panel at c passes
4 lbm mixture of 50 argon and 50 nitrogen by mole is in a tank at 300 psi 320 r. determine the volume ot the tank using
Two samples of different pure substances having equal mass are each placed in rigid containers. The first container is half as large as the second container. After the containers are sealed, the pressure of the first container is observed to be twice..
Two forces are acting at a point ''o'', determine magnitude and direction by using parallelogram law of forces and triangular law of forces.
Consider an isotropic composite in which the spherical particles are silica with an elastic modulus of 80 GPa and a polymer matrix with an elastic modulus of 4 GPa. Determine the modulus of the composite for an inclusion fraction of 20% by volume as ..
for a wind speed of 6 ms a stack gas exit velocity of 20 ms a stack diameter of 4 m a heat emission rate of 15 mw and
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