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m_a_m_a [10]
2 years ago
11

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
Physics
1 answer:
Ahat [919]2 years ago
7 0

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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Three deer, a, b, and c, are grazing in a field. deer b is located 62.1 m from deer a at an angle of 54.3 ° north of west. deer
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by cosine law we know that

c^2 = a^2 + b^2 - 2 abcos\theta

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now using above equation

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4 0
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The two forces in each pair can either both act on the same body or they can act on different bodies. The two forces in each pai
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The correct answer in which peer forces each act in a different body

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