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Natalija [7]
3 years ago
12

How are stars formed and classified?

Physics
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0
Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. Stars are typically classified by their spectrum in what is known as the Morgan-Keenan or MK system.
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A hockey player uses a leaf blower to apply a constant force on a hockey puck. The puck accelerates in a straight line across th
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I will slow down and eventually stop
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3 years ago
The masses of the Moon and Earth are 7.35 x 1022 kg and 5.97 x 1024 kg, respectively. The strength of the gravitational force be
bixtya [17]

Answer:

Distance between centre of Earth and centre of Moon is 3.85 x 10⁸ m

Explanation:

The attractive force experienced by two mass objects is known as Gravitational force.

The gravitational force is determine by the relation:

F=\frac{Gm_{1} m_{2} }{d^{2} }      ....(1)

According to the problem,

Mass of Moon, m₁ = 7.35 x 10²² kg

Mass of Earth, m₂ = 5.97 x 10²⁴ kg

Gravitational force experienced by them, F = 1.98 x 10²⁰ N

Universal gravitational constant, G = 6.67 x 10⁻¹¹ Nm²kg⁻²

Substitute these values in equation (1).

1.98\times10^{20} =\frac{6.67\times10^{-11}\times7.35\times10^{22}\times5.97\times10^{24} }{d^{2} }

d^{2}=\frac{2.93\times10^{37}}{1.98\times10^{20}}

d=\sqrt{1.48\times10^{17}}

d = 3.85 x 10⁸ m

3 0
3 years ago
Factor 72x^2 - 8/9<br><br> If you can, please show the steps to solve!
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Factor out 8 and then facotr and u get

8/9(9x+1)(9x-1
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How dose the circulatory systems interact with the digestive systems?
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What is epsilon zero and why does it come into use, particularly in the case of Gauss's Law?
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3 years ago
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