Physics, 02.07.2020 06:01 christianlover20
A student of mass 65.4 kg, starting at rest, slides down a slide 21.2 m long, tilted at an angle of 20.1° with respect to the horizontal. If the coefficient of kinetic friction between the student and the slide is 0.123, find the force of kinetic friction, the acceleration, and the speed she is traveling when she reaches the bottom of the slide.
Answers: 2
Physics, 22.06.2019 05:20, luceridiaaz
Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity
Answers: 1
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 12:00, jasondesatnick
Explain what happens at the saturation point when adding salt to water at room temperature.
Answers: 3
A student of mass 65.4 kg, starting at rest, slides down a slide 21.2 m long, tilted at an angle of...
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