Answer:
The Milky Way is about 1,000,000,000,000,000,000 km (about 100,000 light years or about 30 kpc) across. The Sun does not lie near the center of our Galaxy. It lies about 8 kpc from the center on what is known as the Orion Arm of the Milky Way.
The dark spots on the moon are the craters and there light spots are made up of the moon dust technically called regolith
If im right the answer is wrong actually because no clue
Answer:
Explanation:
The distance traveled by the speeding car will be 
, where 
.
The distance traveled by the police car will be given by the formula:
, where 
and 
since it departs from rest, thus having 
.
The police car will reach the speeding car when those distances are the same, or 
, so we will have:
Which means:
This is the expression asked, but we can use our values:
Answer:
The star must be moving "closer" to the earth because the wave fronts that are being emitted are shifted toward the blue end of the spectrum (they are closer together)
