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nikitadnepr [17]
3 years ago
9

A(n)________is a substance that is made up of a single kind of atom.

Physics
1 answer:
Agata [3.3K]3 years ago
8 0

A(n) element is a substance that is made up of a single kind of atom.


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Choose the law each sentence describes. This law relates a planet's orbital period and its average distance to the Sun. The orbi
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An astronaut has a mass of 75 kg and is floating in space 500 m from his 125,000 kg spacecraft. What will be the force of gravit
nikdorinn [45]

Answer:

1. 2.5×10¯⁹ N

2. 3.33×10¯¹¹ m/s²

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1. Determination of the force of attraction.

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Mass of spacecraft (M₂) = 125000 Kg

Distance apart (r) = 500 m

Gravitational constant (G) = 6.67×10¯¹¹ Nm²/Kg²

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The force of attraction between the astronaut and his spacecraft can be obtained as follow:

F = GM₁M₂ /r²

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The acceleration of the astronaut can be obtained as follow:

F = ma

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Thus, the acceleration the astronaut is 3.33×10¯¹¹ m/s²

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