Homework Help for Astronomy
Astronomy studies the objects and the physical phenomena of light-matter interaction in the outer space. From planets to the expansion of the Universe, Astronomy is one the most diverse areas of Physics.
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I need help with the chart from Seneca college, class NAT 101: is there life beyond earth
7) Here is a table with properties of 12 objects that orbit the Sun. Classify them in 3 groups according to the shown properties. Density is related to the types of materials (water has density of 1.0 g/ , rocks - about 3.0 g/ , most metals - more than 5.0 g/).
Object # Average Density Mass Surface Temperature Atmosphere
g/ Earth #1 (C)
|1||5.4||0.06||-170C to 350C|
|5||5.5||1||-90C to 60C|
|6||4.0||0.11||-140C to 20C|
|9||1.9||2.2 x||-223C to -233C|
|10||2.5||2.8 x||-217C to -243C|
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14. Answer the following question and limit your answer to less than 200 words.
a) Give three ways in which ancient civilizations used the sun to help with daily activities.
b) For each one of the three ways mentioned, use your understanding of modern astronomy to explain whether the ancients were justified or misguided in their use of the sun.