Question

At when height above the surface will the value of gravitational acceleration be half of the surface value?​

Answer 1

Albuquerque was the major figure in the establishment of the Portuguese sea empire in the East. In 1510 he captured Goa, which he fortified and made the chief trading post and permanent naval base in India. To give it a stable character, he offered lands and subsidies to Portuguese men who would marry native women.