If you want to launch a probe that orbits the sun with a period of 4.00 years, what should be its orbital radius? give your answer in astronomical units. the astronomical unit au is defined as the mean distance from the sun to the earth 1au=1.50ă—1011m. express your answer to three significant figures. is the orbital speed of this probe greater than, less than, or equal to the orbital speed of the earth?

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.