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NemiM [27]
3 years ago
7

Our solar system formed from a huge cloud of dust and gas called a _____.

Physics
2 answers:
Mumz [18]3 years ago
7 0
Our solar system formed from a huge cloud of dust and gas called a
c. solar nebula

Based on the nebular hypothesis, our solar system formed from hydrogen gas and interstellar dust. The gas and the dust contracted and formed the early stage of the sun.
____ [38]3 years ago
7 0

The correct answer is C. Solar nebula

Explanation:

According to scientists, the Solar nebula was rotating disk or cloud of dust and gas (mainly hydrogen and helio) that is believed was the origin of our solar system. Indeed, it is estimated the formation of our solar system began 4.6 billion years ago as the solar nebula began contracting forming first the sun in the center and then other elements such as planets. This theory was first proposed in 1734 by Emanuel Swedenborg; however, from the first proposal, multiple models have emerged related to this theory and nowadays, the solar nebula theory is the one that scientist believe explain the formation of our solar system and other solar systems. Thus, our solar system formed from a huge cloud of dust and gas called a solar nebula.

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2 years ago
Read 2 more answers
A plane has an airspeed of 112 km km/h. It is flying on a bearing of 81 degrees° while there is a 28 km divided by h28 km/h wind
Darya [45]

Answer:

speed = 90.7934 km/hr

bearing = 88.55°​

Explanation:

given data

plane speed v = 112 km/hr

bearing = 81°  

θ  = 90 - 81 = 9°

wind speed w = 28 km/hr

bearing (θ2)  =  225°

to find out

ground speed and the bearing of the​ plane

solution

we get here resultant ground speed of plane that is

speed = [ v cos(θ) + w cos(θ2)] i + [ v sin(θ) + w sin(θ2)] j

speed = [112 cos(9) + 28 cos(225)] i + [112 sin(9) + 28 sin(225)] j

speed = 90.822 i - 2.278 j

| speed | = \sqrt{90.822^2-2.278^2}

| speed | = 90.7934 km/hr

and

tan(θ) =  \frac{2.278}{90.822}

θ = 1.4367°

bearing of the​ plan will be

bearing  = 90 - 1.4367

bearing = 88.55°​

8 0
3 years ago
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