As you saw in part a, io's elliptical orbit is necessary to its tidal heating. this elliptical orbit, in turn, is a result of the orbital resonance among io, europa, and ganymede. this orbital resonance causes io to have a more elliptical orbit than it would otherwise, because and ganymede are unusually large moonseuropa and ganymede always pull on io from the same direction as jupiter pulls on ioio periodically passes europa and ganymede in the same orbital positionall three moons orbit with the same period, staying aligned at all times

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.