Question

6 multiple choice 1 point what is the eccentricity of an orbit where the foci are also the center? 1 0 0.5 0.25

Explanation:

Step1: Recall eccentricity formula

For a conic section (like an ellipse, which orbits are often modeled as), the eccentricity \( e \) is given by \( e=\frac{c}{a} \), where \( c \) is the distance from the center to a focus, and \( a \) is the semi - major axis length.

Step2: Analyze the condition

If the foci are also the center, then the distance from the center to a focus \( c = 0 \).

Step3: Calculate eccentricity

Substitute \( c = 0 \) into the formula \( e=\frac{c}{a} \). We get \( e=\frac{0}{a}=0 \) (assuming \( a
eq0 \), which is true for a non - degenerate conic section representing an orbit).

Answer:

0 (corresponding to the option with value 0)