s40062623 s40062623

Today at 9:19 PM
Physics

Answered

One of the ways that scientists determine the distance between Earth and other objects in space is to send light waves toward an object and measure how long it takes for the waves to bounce back. If a scientist sends light waves to four different objects in space, which of the following will take the longest to bounce the wave back to Earth?

a star in the Milky Way Galaxy

a star in the Andromeda Galaxy

a planet in Earth's Solar System

a planet in another star system within the Milky Way Galaxy

Answer :

camrynkeller11 camrynkeller11

Today at 9:24 PM

Answer:

a star in andromeda

Explanation:

all of the other objects are in the milkyway (where we are) and the andromeda galaxy is 2 million light years away from us

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