You send a probe to orbit Mercury at 123 km above the surface. What orbital velocity (in km/s) is needed to keep it in orbit? (The mass of Mercury is 3.30 x 1023 kg, and the radius of Mercuryis 2.44 x 10³ km.)What is the ratio of the time it takes a signal from Earth to reach Mercury (d = 57.9 x 106 km) to the time it would take to reach the Moon (d = 384,400 km)?If your signal is at 9 cm, what is the wavelength shift (in cm) at this orbital velocity? (Assume the probe is at a point in its orbit in which it is moving directly away from the Earth.)Part 1 of 4The orbital velocity is just the circular velocity.where the distance is the distance above the surface plus the radius of Mercury.GM Mercury-kgxHow high above the surface is the probe? Make sure you enter your distance in meters. mkm/sVc =GMVc =

Given that, The altitude of the orbit of a probe from the mercury surface is h=123km=0.123×106m The…

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