Question

what determines how fast a satellite must travel to stay in orbit around earth? (1 point) ○ the satellite’s size and weight ○ the distance of the satellite from earth’s center ○ the number of other satellites in space ○ the phase of the moon

Explanation:

To determine the orbital speed of a satellite, we use the formula for orbital velocity \( v = \sqrt{\frac{GM}{r}} \), where \( G \) is the gravitational constant, \( M \) is the mass of the Earth, and \( r \) is the distance from the satellite to the Earth's center. The satellite's size/weight, number of other satellites, or Moon's phase do not affect this speed. The key factor is the distance from Earth's center.

Answer:

B. The distance of the satellite from Earth’s center