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Physics, 20.10.2020 18:01, QueenNerdy889
The speed of a car is increased uniformly from
20. meters per second to 30. meters per second in
4.0 seconds. The magnitude of the car's average
acceleration in this 4.0-second interval is
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Answers: 3
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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.
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Do you know the correct answer?
The speed of a car is increased uniformly from
20. meters per second to 30. meters per second in
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