The body of an astronaut can float weightless on Earth if the centrifugal force is balanced by the force of gravity in a parabolic flight.
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Short, simple sentences with “weightless”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
The body of an astronaut can float weightless on Earth if the centrifugal force is balanced by the force of gravity in a parabolic flight.
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