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meriva
3 years ago
8

A blank tells you what the different symbols and lines represent on a map

Physics
1 answer:
Oduvanchick [21]3 years ago
3 0

A legend on a map tells you what different symbols mean

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The fact that Mercury has no atmosphere is evidence that it _____.
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A ball is dropped from the ceiling and free falls to the floor. Which one of the
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A

Explanation:

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Determine whether the center of mass of the system consisting of the earth and moon lies inside or outside the earth. Assume tha
tester [92]

Answer:

R_cm = 4.66 10⁶ m

Explanation:

The important concept of mass center defined by

         R_cm = 1 / M   ∑  x_i m_i

where M is the total mass, x_i and m_i are the position and masses of each body

Let's apply this expression to our case.

Let's set a reference frame where the axis points from the center of the Earth to the Moon,

       R_cm = 1 / M (m_earth 0 + m_moon d)

the total mass is

      M = m_earth + m_moon

     

the distance from the Earth is zero because all mass can be considered to be at its gravimetric center

let's calculate

      M = 5.98 10²⁴ + 7.35 10²²

      M = 6.0535 10₂⁴24 kg

we substitute

      R_cm = 1 / 6.0535 10²⁴ (0 + 7.35 10²² 3.84 )

      R_cm = 4.66 10⁶ m

4 0
3 years ago
A truck was carrying a substance in a tank. The molecules of that substance were moving away from each other. The truck parked o
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Answer:

In the morning the molecules were moving away from each other with a smaller speed than when the truck was carrying the substance.

Explanation:

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