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Physics, 01.10.2019 06:30 gracieorman4
Which of the following would be a good question that could be scientifically investigated?
a. what is the correct way to pursue happiness in life?
b. can play the piano at a shower tempo improve the sound quality?
c. what is the best advice a parent can give a child?
d. does lack of sunlight affect plant growth?
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Answers: 2
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Physics, 22.06.2019 09:30
1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.
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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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Which of the following would be a good question that could be scientifically investigated?
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