11 1 point
1 answer:
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Answer:
10.87 m
Explanation:
Total length of the wire = 25 m
Let the length of one piece is y and other piece is 25 - y
Let the side of square is a.
So, 4 a = y
a = y / 4
And the side of triangle is b
3 b = (25 - y)
b = (25 - y) / 3
Area of square, A1 = side x side =
A1 = y² / 16
Area of equilateral triangle, A2 =
Total area, A = A1 + A2
For maxima and minima, fins dA /dy
It is equal to zero.
9y = 173.2 -6.928 y
15.928 y = 173.2
y = 10.87 m
So, the length of wire to make square is 10.87 m.
<h2>Answer: Eccentricity
</h2>
From the 6 characteristic orbital elements of the orbit of a body around another more massive, its eccentricity will indicate the shape of the orbit.
Now, going to the specific case of planets, according to Kepler's 1st Law, the planets revolve around the Sun in <u>elliptical orbits</u>.
In this context, the ellipse is a conic, whose eccentricity is between 0 and 1:
When its value is 0 we are talking about a circular orbit and when it is 1, a parabolic orbit.
That is, the nearer to the value of 1 <u>(without reaching 1)</u> the eccentricity of the orbit is, the more elliptical it will be.
Therefore, Planetary orbits that are more elliptical have a greater eccentricity.