A. rotation.
B. revolution.
C. gravitation.
D. orbit.
19. What scientist first proposed that the sun is the center of the solar system?
A. Copernicus
B. Ptolemy
C. Kepler
D. Brahe
20. The unit light-year is a measure of
A. brightness.
B. distance.
C. time.
D. temperature.
2006-07-30 04:25:02 · 13 answers · asked by Adumu 2 in Science & Mathematics ➔ Astronomy & Space
do your own homework kid....
2006-07-30 04:28:46 · answer #1 · answered by scotter98 3 · 0⤊ 7⤋
18. The path in which one object travels around another object is called its orbit.
19. The scientist's name who first proposed that the sun is the centre of the Solar system was Copernicus.
20. The one light-year is measure of distance.
2006-07-30 08:41:52 · answer #2 · answered by atiq 2 · 1⤊ 0⤋
One object will orbit [D] another object.
Even though some sources will say Aristarchus proposed the sun is the center of the solar system, Copernicus [A] is the first to be published saying so. But, didn't he wait to let his work be published as being authored by him after he died?
A light year is the distance [B] light will travel in one year through a vacuum.
2006-07-30 05:50:10 · answer #3 · answered by quntmphys238 6 · 1⤊ 0⤋
It got here about interior the Bible. the guy swung an awl, and the blade chopped off the pinnacle of a guy. So he prayed that the blade of the awl could be chanced on and God brought about the blade to afloat interior the river.
2016-10-01 06:29:09 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Revolution (like, the earth revolves around the sun)
Copernicus
Distance
2006-07-30 04:30:13 · answer #5 · answered by They call me ... Trixie. 7 · 0⤊ 0⤋
Is
A- cheating
B- cheating yourself
C-cheating your future employees with false knowledge
D- detention for cheating
2006-07-30 04:52:50 · answer #6 · answered by ? 5 · 0⤊ 2⤋
orbit,copernicus & distance
2006-07-30 04:46:48 · answer #7 · answered by the great man of lake mauvia 2 · 0⤊ 0⤋
I think D, A, and B
2006-07-30 04:29:25 · answer #8 · answered by Anonymous · 0⤊ 0⤋
D, A, B.
2006-07-30 04:35:35 · answer #9 · answered by Ravi 2 · 0⤊ 0⤋
D
A
B
2006-08-02 18:50:09 · answer #10 · answered by terry b 2 · 1⤊ 0⤋
DAB
2006-07-30 09:38:42 · answer #11 · answered by Anonymous · 0⤊ 0⤋