The Earth's Radius Is 6 $\times$ 10⁶ m

Multiple Choice

The Earth's radius is 6.4 $\times$ 10⁶ m. The acceleration due to gravity (in g's) that is experienced by an object at a distance of 150 miles (240 km) above the Earth's surface is

A) zero because the object is in space (0 g) .
B) 0.51 g.
C) 1.0 g.
D) 0.92 g.