Hw dd th Ptlm mdl xln th rnt rtrgrd mtn f th lnts? 1-It hld tht smtms th lnts mv
ID: 116490 • Letter: H
Question
Hw dd th Ptlm mdl xln th rnt rtrgrd mtn f th lnts?
1-It hld tht smtms th lnts mvd bkwrd lng thr rulr rbts
2-It hld tht th lnts mvd lng smll rls tht mvd n lrgr rls rund th Sun
3-It ld th Sun t th ntr s tht th lnts' rnt rtrgrd mtn ws sn s Erth ssd h n n ts rbt.
4-It hld tht th lnts mvd lng smll rls tht mvd n lrgr rls rund Erth.
5-It vrd th mtn f th lstl shr s tht t smtms mvd bkwrd.
Wht mks th Nrth Str, Plrs, spl?
1- it is the brightest star in the sky 2- it is the star straight overhead
3- it appears very near the north celestial pole 4- it is the star directly on your northern horizon
In th frmul =m2, wht ds E rrsnt?
1- the kinetic energy of a moving object 2- the radioactive energy carried by light
3- the gravitational potential energy of an object held above the ground
4- the mass-energy, or potential energy sored in an object's mass
Thrml rdtn s dfnd s?
1-rdtn rdud b ht bjt. 2- rdtn n th nfrrd rt f th strum
3-rdtn tht dnds nl n th mttng bjt's tmrtur.
rdtn n th frm f mssn lns frm n bjt.
Wht is the mnng of the wrd sms?
1-the sum ttl of ll mtter nd nrgy, that is, evrything wthin and btwen all glxs
2- the rign of Erth and lfe upn it 3- the lght from a dstant stronomical bjct
4- the Milky Way 5- the dark sky
Wht wuld hn f th S Shuttl wr lunhd wth sd grtr thn Erth's s vlt?
1- it would travel away from Earth into the solar system
2- it would travel in a higher orbit around Earth
3- it would take less time to reach its bound orbit
4- it would orbit Earth at faster velocity
4-rdtn n th frm f mssn lns frm n bjt.
Wht is the mnng of the wrd sms?
1-the sum ttl of ll mtter nd nrgy, that is, evrything wthin and btwen all glxs
2- the rign of Erth and lfe upn it 3- the lght from a dstant stronomical bjct
4- the Milky Way 5- the dark sky
Wht wuld hn f th S Shuttl wr lunhd wth sd grtr thn Erth's s vlt?
1- it would travel away from Earth into the solar system
2- it would travel in a higher orbit around Earth
3- it would take less time to reach its bound orbit
4- it would orbit Earth at faster velocity
Explanation / Answer
1. Option 4
Planetsusually move west to east relative to stars; during
retrograde motion, they move east to west.The planet
moves in a small circle called the epicycle.The center of the
epicycle moves in a largecircle called the deferent. Planet moves eastward rapidly along epicycle.epicycle moves eastward along deferent.epicycle moves slowly eastward along deferent.combination of small and large circles produces loop the loop motion. During the Middle Ages, Ptolemy’s model had to be fiddled with – more epicycles were added. The model was needlessly complicated because it was based on erroneous assumptions.apparent backward looping of the planet, Claudius Ptolemy (fl. 140 AD) devised a very elegant geometrical construction to describe this motion. His model involved a large circle (deferent) and a second smaller circle (epicycle) on which the planet moved. The result was that the planet moved with a double motion. Specifically, the planet moved with uniform angular speed around the center of the epicycle, and in turn, the center of the epicycle moved with uniform angular speed around the equant point. The equant point, by definition, was an imaginary point situated near the earth. Its exact position varied from planet to planet. In each case its location was determined by observation and calculation. The result was a simple and accurate description of planetary motion.
2. Option 3
3. Option1.
4. Option 3
5. Option 1
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