Physics, 30.09.2019 21:00, mgollaoutlaw35
You are conducting an experiment inside an elevator that can move in a vertical shaft. a load is hung vertically from the ceiling on a string, and is stationary with respect to you. the tension in the string is measured to be 10% less than the force due to gravity on the load. no other forces are acting on the load. which of the following statements about the elevator are correct? which of the following statements are truethe elevator is an inertial frame of reference. the elevator is not an inertial frame of reference. the elevator may be at rest for the duration of the entire experiment. the elevator may be moving at a constant velocity upward. the elevator may be moving at a constant velocity downward. the elevator must be accelerating.
Answers: 3
Physics, 21.06.2019 23:30, ghari112345
Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?
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 17:50, marianamartinez6
If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around
Answers: 2
You are conducting an experiment inside an elevator that can move in a vertical shaft. a load is hun...
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