Jessie is an astronaut with a mass of 66 kg in an orbit (a fast moving circularpath) around the earth. She is 477000 meters above the ground, and has anorbital speed of 9000 metres per second.For the following questions, assume the mass of the earth is 6.0e + 24kilograms, and the radius of the earth is 6371000 metres.a) Which of the following factors affect the gravitational force of attractionbetween Jessie and the earth?Speed of Jessie Orbiting the EarthJessie's MassHeight above the ground of JessieEarth's MassRadius of Earthb) James, an astronaut (with the same mass as Jessie) intends to use a hot airballoon to get to Jessie. How much buoyancy force is required to enable James tofloat at the same height as Jessie.FBN c) In reality, this isn't possible due to the extremely low air density (along with a lotof other factors!). !) If the air at Jessie's height is at a pressure p = 0.285kg/m°what is the absolute minimum volume a hot air balloon must be in order to provideenough buoyancy force for James at that height? For this question, you canassume g = 9.8 to make things easier.V=m

In this question we will use the concept of Archimedes' principle.Archimedes' principle states that…

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