An astronaut orbits the earth in a space capsule whose height above the earth is equal to the earth's radius. How does the weight of the astronaut in the capsule compare to her weight on the earth? a. Her weight is equal to zero newtons b. Her weight is approximately equal to one-fourth of her weight on earth c. Her weight is approximately equal to one-half of her weight on earth d. Her weight is approximately equal to one-third of her weight on earth e. Her weight is approximately equal to one-sixteenth of her weight on earth