Question

An ice covered moon, with a mass of 3.575×1020 kg and a diameter that equals 494.6 km, has an eruptive geyser that sprays a water mixture 247.0 km above the moon's surface.

With what velocity was the geyser spray coming out of the moon's crust?

Note, as the geyser's height is large compared to the moon's diameter, you will need to calculate for the geyser's potential and kinetic energies at the top and bottom of its eruption.

Round your answer to 5 significant figures in units of m/s.

Answer 1