Satellites: Spaceman Speff orbits spherical asteroid X with his spaceship. To remain in a circular orbit at 
from the asteroid's center, he should maintain a speed of 
What is the mass of planet X? (G = 6.67 × 10-11 N ∙ m2/kg2)
Definitions:
Life Expectancy
The average number of years a person is expected to live, based on statistical analysis of current mortality rates.
Industrial Countries
Nations with highly developed economies characterized by significant industrial activity, advanced technology, and a high standard of living.
Labor-Intensive Service Sector
A segment of the economy that relies heavily on human labor rather than machinery to provide services.
Manufacturing Productivity
The measure of output produced per labor hour in the manufacturing sector.
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