Final answer:
When the orbit radius is reduced, the satellite moves closer to Earth's surface and the field strength increases.
Step-by-step explanation:
When the orbit radius of a satellite is reduced to one fifth of its original radius, the satellite moves closer to Earth's surface. This means that the distance between the satellite and Earth's center decreases. As a result, the gravitational force experienced by the satellite increases. This increase in gravitational force leads to an increase in the satellite's acceleration, which affects its orbital speed.
The field strength of an orbiting satellite is inversely proportional to the square of its distance from Earth's center. This means that as the distance is reduced, the field strength increases. Therefore, when the satellite is orbiting closer to Earth's surface, the field strength will increase.
When a satellite’s orbit radius is reduced to one-fifth of its original radius, the gravitational field strength it experiences increases. According to Newton’s law of universal gravitation, the strength of the gravitational field (g) is inversely proportional to the square of the distance from the center of the Earth (r), given by the formula g = G·M/r^2 where G is the gravitational constant and M is the mass of Earth.
Therefore, if the orbit radius is decreased to 1/5th of its original distance, the gravitational field strength will increase by a factor of (5)^2, which is 25 times stronger than it was at the original radius.