Physics, 06.07.2019 18:20, kookycookiefanx
8.why are objects that fall near earth’s surface rarely in free fall? gravity does not act on objects near earth’s surface. air exerts forces on falling objects near earth’s surface. the objects do not reach terminal velocity. the objects can be pushed upward by gravity.
Answers: 2
Physics, 21.06.2019 20:30, NetherisIsTheQueen
F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?
Answers: 2
Physics, 22.06.2019 10:50, afonseca73
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
Physics, 22.06.2019 14:30, trevorhenyan51
Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
Answers: 1
8.why are objects that fall near earth’s surface rarely in free fall? gravity does not act on objec...
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