Physics, 17.12.2019 05:31 jessica2138
Learning goal: to teach you how to find the parameters characterizing an object in a circular orbit around a much heavier body like the earth. the motivation for isaac newton to discover his laws of motion was to explain the properties of planetary orbits that were observed by tycho brahe and analyzed by johannes kepler. a good starting point for understanding this (as well as the speed of the space shuttle and the height of geostationary satellites) is the simplest orbit--a circular one. this problem concerns the properties of circular orbits for a satellite orbiting a planet of mass m. for all parts of this problem, where appropriate, use g for the universal gravitational constant. part a)find the orbital speed v for a satellite in a circular orbit of radius r. (express the orbital speed in terms of g, m, and r),part b)find the kinetric energy k of a satellite with mass m in a circular orbit with radius r. (express your answer in terms of m, m, g, and r).part d)find the orbital period t. (express your answer in terms of g, m, r, and pi).part f)find l, the magnitude of the angular momentum of the satellite with respect to the center of the planet. (express your answer in terms of m, m, g, and r. part g)the quantities v, k, u, and l all represent physical quantities characterizeing the orbit that depend on radius r. indicate the exponent (power) of the radial dependence of the absolute value of each. (express your answer as a comma-separated list of exponents corresponding to v, k, u, and l, in that order.
Answers: 3
Physics, 21.06.2019 22:50
As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.
Answers: 1
Physics, 22.06.2019 11:10
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
Answers: 3
Physics, 23.06.2019 01:30
When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.
Answers: 3
Physics, 23.06.2019 04:31
Atruck travels at an average speed of 70 km/hr. if it travels 100 km in the first hour, how far will it go the second hour of a 2 hour trip? if you could also give me the steps that would great.
Answers: 3
Learning goal: to teach you how to find the parameters characterizing an object in a circular orbit...
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