B) Explain the dfference between the Geocentric and the heliocentic perspectives.
C) Write out Keplers 3 laws of motion ( describe, sketch and/or in formula if applicable)
2007-12-19 03:45:40 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
A) 1, Clouds always rest on the horizon suggesting that they are also below the horizon. 2, The mast of a sailboat is seen to rise above the horizon as it approaches an observer on land.3, During an eclipse the earth's shadow is disc shaped.
B) The former places the Earth at the centre of the solar system, the latter places the sun at the centre.
C Kepler was instrumental in discovering that the orbits of planets are elliptical, I am unaware of any laws of motion ascribed to him.
2007-12-19 04:51:54 · answer #1 · answered by johnandeileen2000 7 · 0⤊ 0⤋
A) Walk or sail 60 nautical miles or so north and notice the difference in a star's altitiude when it passes north or south. Watch the sun rise over and over again when walking down a hill. Fly around the World.
B) The geocentric model has the Earth motionless at the center of the solar system and the visible stars. The heliocentric model has the Sun at the center. Both have been disproven.
2007-12-19 04:16:15 · answer #2 · answered by Mark 6 · 0⤊ 0⤋
OK, I was going to answer that until I got here and saw 3 obvious homework problems in one question. Now I changed my mind.
2007-12-19 03:51:19 · answer #3 · answered by campbelp2002 7 · 1⤊ 0⤋