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katiebreon6193
14.07.2019 •
Physics
We start with some review problems dealing with forces and newton's second law.. (a) a crate of mass m. 5& kg rests on a level surface, with a coefficient of kinetic 0 6k. n. what is the magnitude of the crate's acceleration as it slides? friction n._10. you push on the crate with an applied force of (5)take the same crate of mass m. 50 .& kg, and the same coefficient of kinetic friction n.030, but now place the crate on an inclined surface, slanted at some angle 8 above the horizontal. now instead of pushing on the crate, you let it slide down due to gravity. what must the angle 6 be, in order for the crate to slide with the same acceleration it had in part (a)? same situation as in part (b), but now with no friction. once again, what must the angle 0 be, in order for the crate to slide with the same acceleration it had in part (a)? (c) now we move on to some new stuff, involving rotation (circular motion) and artificial gravity! (d) different situation now. you're out in space, on a rotating wheel-shaped space station of radius p 731 0 m. you feel planted firmly on the "floor", due to artificial gravity. the gravity you experience is earth-normal, that is, g 9.81 m/s. how fast is the space station rotating in order to produce this much artificial gravity? (e) what would the radius of the space station have to be, rotating at the rate you calculated in part (d), to produce artificial gravity of 30.0 m/s?
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Ответ:
B) Plasma can have lots of space between its particles, so it naturally expands and compresses.
Explanation:
Just took the quiz and got it right