Physics, 14.07.2019 02:10 phancharamachasm
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?
Answers: 1
Physics, 21.06.2019 15:10
What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?
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Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3
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Physics, 22.06.2019 21:00
What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.
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We start with some review problems dealing with forces and newton's second law.. (a) a crate of mass...
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