Question

A. it's appearance depends entirely on where you are on Earth.
B. the disk of the Galaxy is warped.
C. the Solar System is tilted compared to the disk of the Galaxy.
D. the Sun's gravity deflects incoming starlight.

Answer 1

Answer: C

Answer 2

supernova or supernova explosion.

Answer 3

is the explanation for how our Solar System developed

Answer 4

E

Answer 5

d

Answer 6

d

Answer 7

FALSE

Answer 8

D

Answer 9

B

Answer 10

D

Answer 11

One consequence of the wavelike nature of light is that there is an inevitable small blurring called a diffraction fringe around every point of light in the image, and you cannot see any detail smaller than the fringe. Astronomers can't eliminate diffraction fringes, but the fringes are smaller in larger telescopes, and that means they have better resolving power and can reveal finer detail.

Answer 12

4.00

Answer 13

The prime focus reflector needs only a single optical surface, on the front of the main mirror.

Answer 14

B) Its atmosphere contains abundant oxygen.

Answer 15

strong (nuclear)

Answer 16

2.5 × 1010 Kw-h ( = 9.0 × 1016 J)

Answer 17

C

Answer 18

b

Answer 19

T

Answer 20

B

Answer 21

C) The more distant a galaxy is from us, the faster it moves away from us.

Answer 22

True

Answer 23

B

Answer 24

B

Answer 25

D

Answer 26

Answer: D

Answer 27

D

Answer 28

B

Answer 29

FALSE