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kondaur [170]
3 years ago
11

What is the pulling force of this train, if its engine provides 4200 kW power and 90 km/h speed?

Physics
1 answer:
satela [25.4K]3 years ago
5 0

Answer:

yes by 30

Explanation:

uhnhuh

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Explain why a black and white aeronautical map would be difficult to use
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Aeronautical maps are usually meant to be used by pilots and air aviation professionals in other to navigate or traverse though the sky. With various elements such as vegetation, hills, valleys being depicted by color coded keys or legend. Hence, the absence of color on an aeronautical map make the <em>representation of elements very difficult</em>.

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5 0
2 years ago
What are the two groups of planets based on composition?
iris [78.8K]
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2 years ago
The center of the Hubble space telescope is 6940 km from Earth’s center. If the gravitational force between Earth and the telesc
Law Incorporation [45]
The gravitational force between two objects is given by:
F=G \frac{m_1 m_2}{r^2}
where
G is the gravitational constant
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The distance of the telescope from the Earth's center is r=6940 km=6.94 \cdot 10^6 m, the gravitational force is F=9.21 \cdot 10^4 N and the mass of the Earth is m_1=5.98 \cdot 10^{24} kg, therefore we can rearrange the previous equation to find m2, the mass of the telescope:
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