Which one is most important in explaining the tremendous tidal heating that occurs on io?
a. io is the closest to jupiter of jupiter's large moons.
b. io orbits jupiter on an elliptical orbit as a result of orbital resonances with other satellites.
c. io exhibits synchronous rotation, meaning that its rotation period and orbital period are the same.
d. io orbits jupiter in the io torus, and therefore has a surface that is bombarded by many charged particles.

The correct answer is B

Explanation:

The reason is because Io orbits Jupiter on an elliptical orbit as a result of orbital resonances with other satellites.

The orbit resonances is a phenomena whereby one objects orbit period is a simple ratio of another object's period such as 1/2, 5/3, etc. What really happened is that during this period, the two objects line up to each other and the extra-gravitational pull will influence their orbits, and causes tidal friction which is then the source of the tremendous internal heating.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.