Physics, 23.11.2019 05:31 alexisbeasley2
Asoccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. suppose she produces an angular acceleration of 29.5 rad/s2 and her lower leg has a moment of inertia of 0.95 kgâ‹…m2 .
Answers: 3
Physics, 21.06.2019 18:10
Awheelhas a radius of 4.8 m. howfar (path length) does a point on the circumference travel if thewheel is rotated through angles of 30°, 30 rad, and 30 rev,respectively?
Answers: 3
Physics, 22.06.2019 10:50
Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
Answers: 3
Asoccer player extends her lower leg in a kicking motion by exerting a force with the muscle above t...
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