Physics, 24.09.2019 05:00 ruchiamin2633
A50.0 n box sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at 1.75 m/s and that is stops in 2.25 s with uniform acceleration. the force that friction exerts on this box is closest to:
Answers: 1
Physics, 22.06.2019 09:00
Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
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.
Answers: 3
Physics, 22.06.2019 14:30
What was the first instrument to ever record an earthquake?
Answers: 1
A50.0 n box sliding on a rough horizontal floor, and the only horizontal force acting on it is frict...
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