Answers: 1
Physics, 22.06.2019 10:30
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
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.
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Physics, 22.06.2019 17:30
Convection currents are caused by differences in what two things?
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Physics, 22.06.2019 18:00
Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47
Answers: 2
A2-kg object is moving horizontally with a speed of 4 m/s. how much net force is required to keep th...
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30
Mathematics, 19.03.2021 19:30