If a spacecraft has a high specific mechanical energy, what does this tell us about the size of the orbit? why?

No because a circle or pie graph usually shows percentages you'd need a line graph

Velocity=total displacement/timefrom house to store is 500 from store to neighbor is 200 therefore total displacement=500+200=700metrestherefore,700metres/910seconds=0.8metres per second

Conductionhope this .

Iwas thinking the wavelength is one half its original value