Homework Help for Astronomy

What is minimum?

What is education?

What is time?

how the black holes are generated and what are its effect ?

What is black hole?

This is worksheet 3 from my NAT101 course. i need help with the questions pls 

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/).

                          g/                    Earth #1                      (C) 

1	5.4	0.06	-170C to 350C
2	1.3	318	-108C
3	5.3	0.81	470C
4	0.7	95	-180C
5	5.5	1	-90C to 60C
6	4.0	0.11	-140C to 20C
7	1.3	14	-218C
8	1.6	17	-218C
9	1.9	2.2 x	-223C to -233C
10	2.5	2.8 x	-217C to -243C

11	2.1	4.3 x	-100C
12	2.8	3.5 x	-102C

Write just a few sentence that "describe" and " reflect" your experience with nature that makes you happy.

Our Sun is represented by letter _______ and is considered _________.

Stars in a region of A are ________ and are near the _______ of their lifespans.

1. How close is Charon to Pluto’s Roche limit?

How long does it take the sun to convert one earth mass of hydrogen to helium?

What is the round-trip travel time of light from earth to Pluto (at a distance of 40 AU)? How far would a spacecraft moving in a circular orbit 500 km above Pluto's surface travel during that time? To how many orbits does this corresponds?

Many generations of stars have lived and died in the Milky Way. In your own words, describe the three stages in the life cycle of these stars.

Limit your answer to less than 150 words.