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, 22.06.2019 06:00
The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.
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What are the similarities & differences between a thermistor and a light dependent resistor in physics?
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Describe cytokinesis in plants and animals. in animals: in plants.
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Physics, 22.06.2019 18:50
Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle can be assumed at 30 deg
Answers: 2
Learning goal: to teach you how to find the parameters characterizing an object in a circular orbit...
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