A Planet in Another Solar System Orbits a Star with a Mass

question 51

Multiple Choice

A planet in another solar system orbits a star with a mass of 4.0 *10³⁰ kg. At one point in its orbit it is 250 * 10⁶ km from the star and is moving at 35 km/s. Take the universal gravitational constant to be 6.67*10^-11 m²/s² . kg and calculate the semimajor axis of the planet's orbit. The result is:

• A) 79 * 10⁶ km
• B) 160 * 10⁶ km
• C) 240 *10⁶ km
• D) 320 *10⁶ km
• E) 590* 10⁶ km

---

Definitions:

Perceived Distinctiveness

The degree to which individuals see themselves as different from others in their social surroundings.

Symmetrical Faces

Faces that are mirror images on the left and right sides, often associated with attractiveness in human perception.

Attractive Faces

Features or characteristics of faces that are aesthetically pleasing and appeal to the evolutionary or social preferences of an observer.

Parental Investment

The time and energy that a parent invests in raising their offspring, which influences the survival and reproductive success of the offspring.