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:

Industrial Revolution

A period of major industrialization and technological innovation during the late 18th and early 19th centuries, leading to profound changes in society.

World Growth Rate

The annual percentage increase in the global gross domestic product (GDP), reflecting the overall health and economic activity of the world.

Industrial Revolution

marks the period of major industrialization that took place during the late 1700s and early 1800s, significantly transforming economies and societies through the adoption of new manufacturing processes and technologies.

American Workers

Refers to individuals in the United States engaged in various forms of employment, contributing to the country's labor force and economy.