A polymer that contains internal flaws 15 mm in length
A polymer that contains internal flaws 1.5 mm in length fails at a stress of 30 MPa. Determine the plane strain fracture toughness of the polymer. Assume a polymer specimen of "infinite" width.
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Calculate the velocity of a satellite moving in a stable circular orbit about the Earth at a height of 3700 km
A model of a high-rise offiice building at 1/500 scale is tested in a wind tunnel to estimate the pressures and forces on the full-scale structure. The wind-tunnel air speed is 20 m/s at (20 degrees C) and atmospheric pressure.
A man with mass m1 = 54 kg stands at the left end of a uniform boat with mass m2 = 174 kg and a length L = 2.6 m. After the man walks to the right edge of the boat, what is the new location the center of the boat
A puck is sliding without friction on the ice at a speed of 2.48 m/s. Find the speed and direction of the second puck after the collision
The surfer in the photo is catching a wave. Suppose she starts at the top of the wave with a speed of 1.50 m/s, how much work is done by the (non-conservative) force of the wave
Two thin coils of radius 3 cm are 20 cm apart and concentric with a common axis, What is the magnitude of the magnetic dipole moment of one of the coils of wire
An interstellar spaceship is leaving Earth at a speed of %u03B2 = 0.548 for a deep space expedition. What is the geometric mean of the down-shifted and the up-shifted frequency
A 50 mg-50 Pb alloy is cooled slowly from 700 C to room temperature, a) Calculate the mass fractions of the phase present at 700 C
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