Question

Of Mercury is 5.79X10 m.
2. Calculate the earth's gravity force on a 75.0 kg astronaut who is repairing the Hubble Space
Telescope 600 km above the earth's surface, and then compare this value with his weight at
the earth's surface. In view of your result, explain why we say that astronauts are weightless
when they orbit the earth in a satellite such as the space shuttle. Is it because the gravitational
pull of the earth is negligibly small? Given: The mass of the earth is 5.97 x1024kg and the
radius of the earth is 6400km.​

Answer 1

Answer:

Hint: Use Newton's law of gravitation $F = G m_E m / r^2$

mg' = mg ( 1 - 2hR ) = 75 × 10 (1 - 0.185) = 610 N

Thanks...