Physics, 30.10.2019 04:31 biancaceja755
The geocentric equatorial position vectors, in km, of a satellite at three separate sightings are: r1 = 2800 i + 6000 j + 9000 k r2 = β 3500 i + 227 j + 12400 k r3 = β 13000 i β 7000 j + 9200 k using gibbs method, a) determine the orbit eccentricity b) is the orbit retrograde or prograde? c) what is the perigee altitude of the satellite?
Answers: 3
Physics, 21.06.2019 18:00
Which two objects have the greatest gravitational force acting between them
Answers: 1
Physics, 22.06.2019 17:50
Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system
Answers: 2
Physics, 22.06.2019 19:40
Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.
Answers: 3
The geocentric equatorial position vectors, in km, of a satellite at three separate sightings are:...
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