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The answer is C. nebular are star nurseries. When the massive gas being collapsing in its own weight. Local areas of gas begin to coalesce under gravity. Due to enormous pressure, nuclear fusion begins and a protostar is formed. The protostar grows into the sun as more hydrogen fuses at the core. The planetesimal materials at the edges of the protostellar discs coalesce to form planets that orbit the star.
There are 507,729,600 seconds in 2.3 years.
<h3>How to convert years to seconds?</h3>
Time is the dimension of spacetime with the opposite metric signature to space dimensions.
Time can be measured in seconds, hours, minutes, days, years etc. however, they are inter-convertible.
The conversion factors are as follows:
- 60 seconds in one minute
- 60 minutes in one hour
- 24 hours in a day
- 7 days in a week
- 365 days in a year.
This means that there will be;
- 839.5 days in 2.3 years
- 5876.5 weeks in 839.5 days
- 141,036 hours in 5876.5 weeks
- 8,462,160 minutes in 141,036 hours
- 507,729,600 seconds in 8,462,160 minutes
Therefore, there are 507,729,600 seconds in 2.3 years.
Learn more about time conversion at: brainly.com/question/3578236
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Answer:
the shooting angle ia 18.4º
Explanation:
For resolution of this exercise we use projectile launch expressions, let's see the scope
R = Vo² sin (2θ) / g
sin 2θ = g R / Vo²
sin 2θ = 9.8 75/35²
2θ = sin⁻¹ (0.6)
θ = 18.4º
To know how for the arrow the tree branch we calculate the height of the arrow at this point
X2 = 75/2 = 37.5 m
We calculate the time to reach this point since the speed is constant on the X axis
X = Vox t
t2 = X2 / Vox = X2 / (Vo cosθ)
t2 = 37.5 / (35 cos 18.4)
t2 = 1.13 s
With this time we calculate the height at this point
Y = Voy t - ½ g t²
Y = 35 sin 18.4 1.13 - ½ 9.8 1,13²
Y = 6.23 m
With the height of the branch is 3.5 m and the arrow passes to 6.23, it passes over the branch
I’d say it’s 8 or 80
Hopefully this helps sorry